spot lens (spotlenz)

In microscopy, a planoconvex lens used in the place of an ordinary condenser. It has a central stop on the plane side toward the object, and since the rays which pa through (b) A pustule or other eruptive mark, as in a rasheetpisparenteget the of the pips on a playing-card; hence, in composition with a numeral, the card having pips to the number expre ed: as, to play a ten- spot. (d) One of two marked points on a billiard-table, on which balls are placed, or from which they are to be played. (e) A dark place on the disk or face of the sun or of a planet. See sun -spot. (f) In zoöl., a color-mark of rounded or indeterminate form, but not very long for its width, and thus not forming a streak or stripe; a blotch; a macula: usually said of markings larger than those called dots or points. An eyed spot forms an ocellus (which see). 4. A small extent of space; a particular locality; a place; a site.-5. A piece; a bit; hence, something very minute; a particle; an atom. This earth, a spot, a grain, An atom, with the firmament compared. Milton, P. L., viii. 17. objective, the transparent or translucent object under examination appears to be self-luminous surrounded by a dark background. spotle (spot'les), a. [ Of spotlez perlez tha[y] beren the creste. Alliterative Poems (ed. Morris), i. 855. This palliament of white and spotle hue. Shak., Tit. And., i. 1. 182. 2. Free from blemish, fault, or reproach; immaculate; pure. My true service May so approve my spotle loyalty. Chapman , Byron's Tragedy, iv. 1. 3. Guiltle ; innocent: followed by of . [Rare.] You fight for her, as spotle of these mischiefs As Heaven is of our sins, or truth of errors. 6. A breed of domestic pigeons having a spot on the head above the beak.-7. ( a ) A sciænoid fish, Liostomus xanthurus ( obliquus ), also called goody, lafayette, oldwife, and pig - fish. See cut = Syn. Unspotted, blamele , unblemished, irreproach under lafayette. (b) The southern redfish or drum, Sciænops ocellatus. See cut under redfish, -8. A small fishing-ground.-Acoustic spot. See macula acustica, under macula. - Black-spot. See black Blind spot. See blind . Compound ocellated spot See compound1. - Confluent, discal, distinct, ermine spots. See the qualifying words. - Crescent spot, in entom., a butterfly of the genus Melitæa and some related forms, having crescentic white spots on the edges of the wings.-Embryonal spot. Same as germinal spot. -Eyed spot, an ocellus. Geminate, germinal, obliterate spot. See the adjectives. - On the (a) Without change of place; before moving; at once; immediately. Treasury Department, Jan. 29, 1861. If any one attempts to haul down the American flag, shoot him on the spot . John A. Dix (Memoirs, by Morgan Dix, I. 370). (b) At the precise place and time; at the place and time at which something specified occurred: as, a picture of a skirmish made on the spot . - Orbicular spot. See orbicular , n.- Receptive, reniform, sagittate spot. See the adjectives. - Sieve-like spot. See macula cribrosa , under macula . Solar spots. See sun- spot . Sommering's spot, the macula lutea, or yellow spot of the eye. Spot Wagner. See nucleolus , 1. - To knock spots out of. See knock . Yellow spot of the eye. See macula lutea , under macula. spot (spot), v.; pret. and pp. spotted, ppr. spot ting. [ He that meddleth with pitch is like to be spotted with Latimer, 5th Sermon bef. Edw. VI., 1549. With rust his armor bright was spotted o'er. William Morris, Earthly Paradise, III. 84. 2. To mar the perfection or moral purity of; blemish; tarnish; sully. Spotted with the stain of unlawful or indirect procurement. Hooker , Eccles. Polity, v. 79. 3. To mark or cover with spots; mark in spots; dot. IMG:content-1834.jpg:[blocks in formation] The surface of the water was spotted with rings where the trout were rising. Froude , Sketches, p. 75. Specifically-4+. To put a patch or patches on (the face) by way of ornament. Faces spotted after the Whiggish manner. Add is on , Spectator, No. 81. 5. To mark as with a spot; especially, to note as of suspicious or doubtful character. Tuft's Glo ary of Thieves Jargon (1798). [Thieves' slang.] At length he became spotted. The police got to know Mayhew, London Labour and London Poor, I. 484. him, and he was apprehended, tried, and convicted. Beau. and Fl . , Knight of Malta, ii. 5. IMG:content-1835.png:[blocks in formation] Iew, Numenius hudsonicus. [Local, New Eng.] The Hudson i an spotrump (spot'rump), n. godwit, Limosa hæmastic a. Also white rump. G. Trumbull. [Ma achusetts.]