quarter timber (kwarter tim"ber)

1. Naut., one of the framing-timbers in a ship's quarters. See cut under counter.-2. In carp., scantling from two to six inches deep. E. H. Knight. quarter-tone (kwarter-tōn), n. In musical acoustics, an interval equivalent to one half of a semitone or half-step. The term is loosely applied to a variety of small intervals, especially to enharmonic ones. quarter-trap (kwâr'ter-trap), n. In theaters, a small trap on each side of the stage, on a line with the first entrance. quarter-turn (kwâr'tėr-tėrn), n. The arc subtending an angle of 90°; a bend or change of direction at right angles. - Quarter-turn belt, gooseneck, etc. See belt, etc. quarter-undulation (kwâr"ter-un-du-lā'shon), n. In optics, a quarter of a wave-length. - Quar ter-undulation plate, a plate (as of mica) so thin as to quartz The heavens threaten us with their comets, stars, planets, with their great conjunctions, eclipses, oppositions, quartiles , and such unfriendly aspects. Burton , Anat. of Mel., p. 87. Or Mars and Venus, in a quartil , move My pangs of jealousy for Arcite's love. Dryden, Pal. and Arc., i. 500. quart i lunar (kwâr-ti-lūnär), a. [L. quart us, fourth (see quart1 ), + luna, moon: see lunar.] Pertaining to or consisting of one fourth of a lunar month. [Rare.] Such [tidal] waves as these may follow their causes, in periodic times, not diurnally alone, as influenced by sun and moon, but in semilunar or quart i lunar intervals. Fitz Roy, Weather Book, p. 96. quartine (kwâr'tin), n . [ quart us , fourth (see quart1 ), quart1 ), + -ine1 .] In bot ., a sup supposed fourth integument of some ovules, counting from the outermost. It is really only a layer of the secundine or of the nucleus. [ [ quart invariant (kwâr-tin-vā'ri-ant), n. quart us, fourth, + E. invariant.] An invariant of the fourth degree in the coefficients. quart i section (k (kwâr-ti-sek's hon), n. quart us, fourth, fourth, + E. section.] Separation into four equal parts; parts; quadrisection. quart is ternal (kwar-ti-ster'na tus, fourth, + sternum, breast-bone.] In an at., the fourth sterneber, counting from the manubrium backward; that bone of the sternum which is opposite the fourth intercostal space. [Rare.] IMG:content-1450.png:[ocr errors] of a wavelength such a plate is used in determining in the polariscope the positive or negative character of a uni axial crystal.