Reticulosa (retikulosa)

pl. [NL., neut. pl. of * reticulosus, reticulose (re-tik'ū-lōs), a. In entom., minutely or finely reticulate. reticulum (rē-tik'ū-lum), n.; pl. reticula (-lä). [NL., retiercé (ré-tyār-sā'), a. [Heraldic F., IMG:content-2116.jpg:[graphic] retina (ret'i-nä), n. [= OF. retine , rectine , F. rétine = Sp. Pg. It. retina , retina , retina: so called because resembling fine network, rete , a net: 6 see rete .] The innermost and chiefly nervous coat of the pos- terior part of the eyeball, be- b tween the choroid coat and the vitreous humor. It extends from the entrance into the eyeball of the optic nerve toward the crystalline lens, terminating in the ora serrata. A modified division of the retinal structure is, however, continued for- ward as the pars ciliaris ret inæ. The retina consists of a delicate and com- plex expansion and modification of the optic nerve, supported by a net- work of connective ti ue. It may be divided into ten layers: (1) internally, next the hyaloid membrane of the vitreous humor, the internal limiting h membrane, formed of the expanded bases of the fibers of Müller; (2) the fibers of the optic nerve; (3) layer of ganglion-cells; (4) internal molecular or granular layer; (5) inner nuclear layer; (6) external molecular or gran- ular layer; (7) external nuclear lay- IMG:content-2117.png:[ocr errors] vous Elements of the Retina, the merely diameters: b, the rods; c, the cones; b', c', granules of the outer nuclear layer, with which these are con- nected; d , d ' , inter- woven very delicate nervous fibers of the granules of the inner nuclear layer f. f pro- ceed toward the front surface; g , g , continua- tion of these fine nerves in the inner molecular convoluted and inter: pro- woven with the pro- ce es of the ganglion- ic corpuscles h, h, i, expansion of the fibers of the optic nerve. IMG:content-2118.png:[blocks in formation] tions, retinal rectangles ought not to become acute or obfemale mind cherishing a prejudice in favor of retiracy tuse, and lines ought not to alter their relative lengths as they do. W. James , Mind, XII. 527. Retinal apoplexy, hemorrhage into the ti ues of the retina.-Retinal horizon, Helmholtz's term for the horizontal plane which pa es through the transverse axis of the eyeball. - Retinal image, the image of ex- ternal objects formed on the retina. - Retinal ischemia, partial or complete anemia of the retina, caused by con- traction of one or more branches of the arteria central is retine. - Retinal purple. Same as rhodopsin . retinalite (re-tin-a-lit), n. [Prop. * rhetinolite , ῥητίνη , resin (see resin ), + λίθος , stone.] A green translucent variety of serpentine, from Canada, having a resinous aspect. ret i nerved (rē'ti-nervd), a . [L. rete , net, + nervus , nerve, + -ed2.] In bot . , netted-veined; reticulate. retinite (ret'i-nīt), n . [= F. rétinite , ῥητί- νη , resin (see resin ), + -ite2.] 1. High gate resin.-2. One of the French names for pitch- stone or obsidian, occasionally used in this sense by writers in English, especially in trans- lating from the French. See cut under fluidal , retinitis (ret-i-nīʼtis), n. [NL., retina + -it is.] Inflammation of the retina. - Albuminuric ret i- nit is, retinitis caused by Bright's disease. - Diabetic retinitis, retinitis occurring in diabetes.- Nephritic retinitis. See nephritic. Retinitis pigmentosa, a chronic interstitial connective-ti ue proliferation of all the layers of the eye, with development of pigment due to a proliferation of the pigment-layer, and with final atro- phy of the optic nerve. ret i no choroiditis (ret"i-nō - kō - roi - dīʼtis), n . [ NL ., retina + choroid + -it is .] In pathol ., same as cho rio retinitis . retinogen (ret'i-nō-jen), n. [ retina , ret i- na, + -gen , producing: see- gen .] The outer one of two layers into which the ectoderm of the embryonic eye of an arthropod may be differ- entiated: distinguished from gangliogen . retinoid (ret'i-noid), a . [ ῥητίνη , resin, + εἶδος , form.] Resin-like or res in i form; resem- bling a resin. retinophora (ret-i-nof'ō-rä), n.; pl. retinophoræ (-re). [NL., retina , retina, + Gr. -φόρος , φέρειν = E. bear1 .] One of those cells of the embry- onic eye of arthropods which secrete the chit i- nous crystalline cone on that surface which is toward the axis of the ommatidium. Also called vitrella . retinoscopy (ret'i-nō-skō-pi), n. [ retina + Gr. σκοπία , σκοπεῖν , view.] 1. Skiascoру.- 2. Examination of the retina with an ophthal- moscope. ret i no skiascopy, n. Same as skiascopy . Retinospora (ret-i-nos'pō-rä), n . [NL. (Siebold and Zuccarini, 1842), ῥητίνη , resin, + σπορά , seed.] A former genus of coniferous trees, now united to Chamæcyparis , from which it has been distinguished by the conspicuous resin-ducts in America under the name retinospora. They are also known as Japanese cypre -C . ( R. ) obtusa as the Japanese tree- of -the- sun , C. ( R. ) pisifera as sawara . They are in use for lawn-decoration, and for hedges, especially the golden retinospora, consisting of cultivated varieties (var. aurea ) of both these species, with yellowish foliage. retinue (ret'i-nū, formerly re-tin'ū), n. [ retenue , retenue , a retinue, F. retenue , re- serve, modesty (= Pr. retenguda ; ML. reflex re- tenuta ), fem. of retenu , pp. of retenir , ret i- nere , retain: see retain .] 1. A body of retainers; a suite, as of a prince or other great personage; a train of persons; a cortège; a proce ion. or by means of which vibrations of luminiferous ether ex- cite the optic nerve to its appropriate activity. See eyel . - Central artery and vein of retina. See central.- Coarctate retina, a funnel-shaped condition of the ret i- na, due to the accumulation of fluid between the retina and the choroid. - Epilepsy of the retina. See epilepsy . -Pigmentary layer of the retina. See pigmentary.- Rod-and-cone layer of the retina, a layer composed of minute elongated cylindrical and flask-shaped elements arranged vertically to the pigmentary layer of the retina, and parallel to one another. Also called columnar layer , bacillar layer , bacillary layer , stratum bacillosum , stratum cylindrorum , Jacob's membrane , Jacob i an membrane . retinaculum (ret-i-nak'ū-lum), n .; pl. retinacula (-lä). [F. rétinacle , retinaculum , a band, tether, halter, tie, retinere , hold back: see re- tain .] 1. In bot .: ( a ) A viscid gland belonging to the stigma of orchids and asclepiads, and hold- ing the pollen-ma es fast. ( b ) The persistent and indurated hook-like funiculus of the seeds in most Acanth aceæ . A. Gray . -2. In an at . , a Tennyson, Prince , iii. restraining band; a bridle or frenum: applied 2. An accompaniment; a concomitant. [Rare.] Not only, sir, this your all-licensed fool, But other of your insolent retinue Do hourly carp and quarrel. Shak ., Lear, i. 4. 221. To horse we got, and so Went forth in long retinue following up The river as it narrow'd to the hills. IMG:content-2119.png:[blocks in formation] retiral (re-tīr'al), n . [ retire + -al.] The act of retiring or withdrawing; specifically, the act of taking up and paying a bill when due: as, the retiral of a bill. Cotgrave . ( Imp . Dict . ) retire (rē-tir'), v .; pret. and pp. retired , ppr. retiring . [ retirer , F. retirer (= Pr. Sp. Pg. retirar = It. ritirare ), retire, withdraw, tirer , draw: see tire2 , and cf. attire .] I. trans. 1. To draw back; take or lead back; cause to move backward or retreat. He, our hope, might have retired his power, And driven into despair an enemy's hope. Shak., Rich. II., ii. 2. 46. The locks between her chamber and his will, Each one, by him enforced, retires his ward. 3t. To lead apart from others; bring into re- tirement; remove as from a company or a fre- quented place into seclusion: generally with a reflexive pronoun. Beseech you, give me leave to retire myself . Shak., Cor., i. 3. 30. Good Dioclesian, Weary of pomp and state, retires himself , With a small train, to a most private grange In Lombardy. 4. To withdraw; separate; abstract. Let us suppose... the soul of Castor, while he is sleep- ing, retired from his body. Many of these [State banks) were in being before the enactment of the national banking law, declined reorgani- zati on under its terms, and were obliged to retire their circulation. Harper's Mag . , LXXX. 459. II. in trans. 1. To draw back; go back; re- turn. He'll say in Troy, when he retires , The Grecian dames are sunburnt, and not worth The splinter of a lance. Shak ., T. and C., i. 3. 281. At his command the uprooted hills retired Each to his place. 2. To draw back; fall back; retreat, as from battle or danger. The winter coming on, and sickne growing Upon our soldiers, we will retire to Calais. At me you smiled, but unbeguiled I saw the snare, and I retired . 3. To withdraw; go away or apart; depart; especially, to betake one's self, as from a com- pany or a frequented place, into privacy; go into retirement or seclusion; in the army or navy, to go voluntarily on the retired list. If you be pleased, retire into my cell And there repose. Shak ., Tempest, iv. 1. 161. The mind contracts herself, and shrinketh in, And to herself she gladly doth retire . retire How oft we saw the sun retire , And burn the threshold of the night. Tennyson, The Voyage. 4. To withdraw from busine or active life. - 5. Specifically, to go to bed. Satisfied that his wife had not been from home that evening, he fell into raptures with her. They then sat down to half an hour's cheerful conversation, after which they retired all in the most perfect good humour. Fielding, Amelia, x. 3. Our landlady's daughter said, the other evening, that she was going to retire ; whereupon... the schoolmistre [said]. in good plain English that it was her O. W. Holmes, Autocrat, ix. bed-time. 6. To slope back; recede; retreat. The grounds which on the right aspire, In dimne from the view retire . T. Parnell, Night-Piece on Death. =Syn. 1 and 2. To depart, recede. See retreat1. retire (re-tir'), n. [= It. retiro; from the verb: see retire, v.] 1. The act of retiring; with drawal. Specifically - ( at ) Return; removal to a former place or position. She conjures him by high almighty Jove. That to his borrow'd bed he make retire . (0) Retreat, especially in war. Shak., Lucrece, 1. 573. From off our towers we might behold, From first to last, the onset and retire Of both your armies. Shak., K. John, ii. 1. 326. IMG:content-2120.png:[blocks in formation] But chasing the enemie so farre for our recouerie as them. returned and in our mens retire they slewe six Hakluyt's Voyages, quoted in R. Eden's First [Books on America (ed. Arber), p. xx. (c) Retirement; withdrawal into privacy or seclusion; hence, a state of retirement. Eve with audible lament Discover'd soon the place of her retire . By some freakful chance he made retire From his companions, and set forth to walk. Keats , Lamia, i. IMG:content-2121.png:[blocks in formation] All his behaviours did make their retire To the court of his eye, peeping thorough desire. Shak ., L. L. L., ii. 1. 234. retired (rē-tird′), p . a . [Pp. of retire , v .] 1. Secluded from society or from public notice; apart from public view. Since the exile of Post humus, most retired Hath her life been. Shak ., Cymbeline, iii. 5. 36. And add to these retired Leisure, That in trim gardens takes his pleasure. Milton, Il Penseroso, 1. 49. 2. Withdrawn from public comprehension or knowledge; private; secret. Language most shews a man: Speak, that I may see thee. It springs out of the most retired and inmost parts of us. B. Jonson, Discoveries, Oratio Imago Animi. Those deepe and retired thoughts which, with every man Christianity instructed, ought to be most frequent. Milton , Reformation in Eng., i. 3. Withdrawn from busine or active life; having given up busine : as, a retired merchant. Roanne seem'd to me one of the pleasantest and most agreeable places imaginable for a retyred person. Evelyn, Diary, Sept. 26, 1644. The English lord is a retired shopkeeper, and has the prejudices and timidities of that profe ion. Emerson, W. I. Emancipation. 4. Given to seclusion; inclining to retirement; also, characteristic of a retired life. There was one old lady of retired habits, but who had been much in Italy. Bulwer , My Novel, x. 2. Retired flank, in fort., a flank having an arc of a circle with its convexity turned toward the rear of the work. Retired list, in the army and navy, a list on which the names of officers disabled for active service are placed. In the United States navy, all officers between the grades of vice-admiral and lieutenant-commander must be retired at the age of sixty-two, and any officer may be retired on application after forty years of service; in the United States army, any officer is retired on application after forty years of service, and any officer after forty-five years of service, or at the age of sixty-two, may be retired at the discretion of the President. Officers on the retired list can be ordered on duty only in case of war. retiredly (re-tir'ed-li), adv. In a retired manner; in solitude or privacy. Imp. Dict. retiredne (re-tir'ed-nes), n. The character or state of being retired; seclusion; privacy; reserve. This king, with a toad-like retiredne of mind, had suffered, and well remembered what he had suffered, from the war in The alia. Sir P. Sidney, Arcadia, ii. IMG:content-2122.png:[blocks in formation] A prison is but a retirement , and opportunity of serious thoughts, to a person whose spirit is confined, and apt to sit still, and desires no enlargement beyond the cancels of the body. Jer. Taylor , Works (ed. 1835), I. 251. 51. Recovery; retrieval. There be a sort of moodie, hot-brain'd, and alwayes unedify'd consciences, apt to engage thir Leaders into great and dangerous affaires past retirement . Milton , Eikon ok las tes, xxviii. =Syn. 2. Seclusion , Loneline , etc. See solitude . retirer (rē-tīr'ėr), n . One who retires or withdraws. retiring (re-tir'ing), p . a . [Ppr. of retire , v .] 1. Departing; retreating; going out of sight or notice. There are few men so wise that they can look even at the back of a retiring sorrow with composure. Lowell, Fireside Travels, p. 85. 2. Fond of retirement; disposed to seclusion; shrinking from society or publicity; reserved. Louis seemed naturally rather a grave, still, retiring Charlotte Brontë, Shirley, xxiii. He [the rhinoceros] developed a nimblene of limb and ferocity of temper that might hardly have been expected of so bulky and retiring an individual. man. P. Robinson , Under the Sun, p. 172. 3. Unobtrusive; modest; quiet; subdued: as, a person of retiring manners. She seemed fluttered, too, by the circumstance of entering a strange house; for it appeared her habits were most retiring and secluded. Charlotte Brontë , Shirley, xii. In general, colours which are most used for the expre ion of... shade have been called retiring . Field's Chromatography , p. 46. 4. Granted to or suitable for one who retires, as from public employment or service. Binnie had his retiring pension, and, besides, had saved half his allowance ever since he had been in India. Thackeray, New comes, viii. =Syn. 2 and 3. Coy, bashful, diffident, shy.