tympan sheet

Print.: A sheet of paper like that to be printed, laid on the tympan as a guide for position in placing the sheets to be printed. tym-pan-al, a. [Eng. tympan; -al.] The same as TYMPANIC (q. v.). tym-pan-î, s. pl. [TYMPAΝΟ.] tym-păn'-Ic, a. & 8. [English tympan (um); -ic.] A. As adjective: 1. Ord. Lang .: Like a drum or tympanum; acting like a drum-head. 2. Anat .: Of, belonging to, or connected with the tympanum. "The tympanic bone is produced upward and outward and forms a tube with everted lips." -Trans. Amer. Philos. Society , xiii. 205. (1873.) B. As substantive : Anat . ( pl .): The bones which give attachment to the membrana tympani of the ear or its homologue; the tympanic ring and auditory proce with the post-glenoid part of the temporal bone. tympanic-bones, s. pl. Anat.: [TYMPANIC, B.] tympanic-plate, s. Anat .: A lamina, the surface of which forms the anterior wall of the external auditory meatus and the tympanum, while the posterior one looks toward the glenoid fo a. It is developed from the outer surface of the tympanic ring. tympanic-ring, s. Anat.: An imperfect circle in the fœtus, open superiorly, and enclosing the tympanic membrane, tym-pan-i-tēs, s. [Lat., from Gr. tympanites the disease defined in the article.] Pathol.: Distension of the parietes of the abdo men, remaining unchanged under different pos i tions of the body, not yielding readily to pre ure, and when the pre ure is withdrawn, elastically returning to its former state, while, if struck, there is a resonance like that of a drum. The distending medium is air within or external to the intestinal canal. The Greeks and Romans considered it a form of dropsy; afterward it became distinguished as dry dropsy. It is sometimes one symptom of hysteria. tym-pan-it-ic, adj . [Eng. tympan it(es); -ic.] Pertaining or relating to tympany or tympanites; affected with tympany or tympanites. "Producing a tympanitic action in that organ."- Kings ley: Raven shoe, ch. xii. tym-pan-i-tis, subst . [Gr. tympan on =a kettledrum; suff.- it is .] Pathol .: Inflammation of the lining membrane of the tympanum. *tym-pan-īze, v . i . & t . [Old Fr. tympani ser ; Lat. tympanizo ; Gr. tympanizo .] [TYMPANUM.] A. Intransitive : To act the part of a drummer. (Coles.) 4239 B. Transitive: To make into a drum; to stretch the skin of, as on a drum. "If this be not to be sawn asunder as Esay, stoned as Jeremy, made a drum or tympani zed , as other saints of God were."- Oley : Life of G. Herbert, M. 2. b. (1671.) tym-pan-ō ( pl. tym-pan-î), *tim-pan-ō, s. [Ital.] [TYMPANUM.] Music: A kettle-drum (said especially of the kettle-drums of an orchestra). tym-pan-ō-, pref. [TYMPANUM.] type *2. Fig .: Inflation, conceit, bombast, turgidity. "In the first leaf of my defense, I fore-told you so much; as finding nothing in that swollen bulk, but a meer unsound tympanie , instead of a truly solid conception." Bp . Hall : A Short Answer . (Pref.) Tyn-dăr-i-dæ, s. pl . [Lat. the sons of Tyndarus; Gr. Tyndareos , * Tyndaros . See def.] 1. Cla . Mythol .: Castor and Pollux, the sons of Tyndarus, king of Lacedæmon and husband of Leda. 2. Meteor.: One of the names given to two meteors certain states of the weather. More generally called Castor and Pollux. IMG:content-1628.png:[blocks in formation] 1. Anat .: The drum, middle ear, or middle chamber of the ear; a narrow, irregular cavity in the substance of the temporal bone, placed between the inner end of the external auditory canal and the labyrinth. Its roof is formed by a thin plate of bone situated on the upper surface of the petrous bone, its floor is a narrow space, its outer wall is formed mainly by a thin, semitransparent membrane the membrana tympani -which closes the inner end of the external auditory meatus; its inner wall is uneven, its anterior extremity is narrowed by the gradual descent of the roof, and is continued into the Eustachian orifice, and its posterior one has at its upper part a large, and several small openings leading into the mastoid cells. The tym panum receives the atmospheric air from the pharynx through the Eustachian tube, and contains a chain of small bones by means of which the vibrations communicated from without to the membrana tympani are in part conveyed acro the cavity to the sentient part of the internal ear. ( Quain .) 2. Architecture : (1) The triangular panel of the fastigium or pediment of any building, comprehended between its corona and that IMG:content-1629.png:[blocks in formation] periphery came in turn to be submerged. As the wheel revolved, such portions of water were carried up and flowed along the partition toward the axis around which the water was discharged, being elevated to a height nearly equal to the radius of the wheel. The wheel was driven by floats on the periphery or side of the wheel, or by means of animal or manual power, and had several modifica tions. 5. Mach .: A kind of hollow tread-wheel, wherein two or more persons walk, in order to turn it, and thus give motion to a machine. 6. Music : A hand-drum or tambourine, but cov ered with parchment, back and front. It was used in conjunction with various kinds of harps, lyres, and pipes, cymbals of metal, the straight bra trumpet and curved bra horn, the castanets of wood and metal. "Ireland [saith one] uses the harp and pipe, which he calls tympanum ."-Drayton: Polyolbion, s. 6.