bichromatic (bikromatik)

chromatic.] Same as dichromatic. bichromatize (bi-krō'ma-tiz), v. t.; pret. and pp. bichromatized, ppr. bichromatizing. [ The film of a bichromatised gelatine, used as a photographic negative. Ure , Dict., II. 299. bichromic (bī-krō'mik), a. [ bichrom ( ate ) + -ic.] Pertaining to or using a bichromate. In the construction of the induction balance a bichro mic battery is used. Science, IX. 190. bichy (bich'i), n. [Appar. a native name.] A name sometimes given to the Cola a cum in at a, a tree of the natural order Sterculiacea . See cola - nut . bickerer bola, and cutting a fixed circle orthogonally. This circle is called the focal circle, because its intersections with the fixed conic are foci of the quartic. The latter has, besides, two double foci, which are the foci of the conic. The perpendiculars from the center of the focal circle to the asymptotes of the conic are bit an gents of the quartic. (See fig. 1.) The intersections of the focal circle with the quartic are cyclic points of the latter. There are three genera of bicircular quartics. The first embraces Fig. 2. First genus, second division; one real oval. all the bicursal forms, and these are curves of the eighth cla . For these there are two real focal circles and two imaginary ones. The two real conics of centers are an ellipse and a confocal hyperbola. There are four real foci and four real cyclic points. This genus has two divisions. In the first, the four real foci are con cyclic, and the real curve consists of two ovals, one of which lies without or within the other, according as the four real foci are on a central ellipse or hyperbola. Fig. 1 shows the latter case, and fig. 2, modified so as to make the upper part like the lower, would show the former. Bicircular quarties of this division have the prop erty that three points can be taken ♡ Fig. 3. that the distances 11, 72, 73, of any point Second genus, no of the curve therefrom shall be expre able by an equation ar1 + br2 + cr3 = 0. Fig. 4. dal The second division of the first genus embraces curves whose four real foci lie in two pairs or two focal circles. These real curves consist of single ovals, as in fig. 2. The second genus comprises uni cursal curves with one node (besides those at the circular points). They are of the sixth cla . There is one real and one imaginary focal circle. The node may be a crunode with an outloop (shown by slightly modifying fig. 2 in the upper part) or with an inloop, as in fig. 3; or it may be an acnode without or within the oval. The third genus contains curves with an ordinary cusp. These are of the fourth cla . There is but one focal circle and but one focus. The cusp may point outward, as in fig. 4, or inward, as in a modification of fig. 3. bicker1 (bik'ėr), v . [Early mod. E. also becker , bicheren , bikkeren , bekeren , bikeren , app a freq. in -er; origin unknown. The W. bicra , fight, is appar. from the E.] I. in trans . 1t. To exchange blows; skirmish; fight off and on: said particularly of the skirmishing of archers and slingers. Third genus, cusp i dal curve. appar. Two eagles had a conflict and bickered together. Holland, tr. of Suet on i us, p. 243. ing two cilia. The biciliate swarm spores that escaped were observed for some hours under the microscope. Trans. Roy. Soc. of Edinburgh , XXXII. 597. bicipital (bi-sip'i-tal), a. [L. biceps ( bicipit- ), two-headed (see biceps ), + -al.] 1. Having two heads; two-headed. [Rare.] -2. In an at.: (a) Having two heads or origins, as a muscle. See biceps. (b) Pertaining to the biceps muscles.-3. In bot., dividing into two parts at the top or bottom. Also bicipitous . Bicipital fascia, an expansion of the tendon of the biceps brachii into the deep fascia of the forearm. - Bicipital groove, a furrow along the upper part of the humerus, in which the tendon of the long head of the biceps muscle lies. See cut under humerus. - Bicipital ridges, the lips of the bicipital groove. bicipitosus (bi-sip-i-tō'sus), n.; pl. bicipitosi (- (-si). [NL., Fig. 1. Bicircular Quartic. Curve of first genus, first division; two real ovals with focal circle and central hyperbola. an e ential analytical similarity to a pair of circles, which it also somewhat resembles to the eye. For the purpose of tracing it, it may be defined as envelop of all the circles having their centers on a fixed ellipse or hyper petulant altercation; wrangle. Those petty things about which men cark and bicker. Barrow. Tho' men may bicker with the things they love. Tennyson, Geraint. Hence-3. To make a brawling sound; make any repeated noisy action; clatter. Meantime unnumber'd glittering streamlets played, That, as they bickered through the sunny shade, Though restle , still themselves a lulling murmur made. Thomson, Castle of Indolence, iii. 26. 4. To run rapidly; move quickly; quiver; be tremulous, like flame or water. I make a sudden sally And sparkle out among the fern, To bicker down a valley. IMG:content-2037.png:[blocks in formation] If thou say nay, we two shal make a bycker . Chaucer, Good Women, 1. 2660. 3. A confused or rapid succe ion of sounds; a rattling or clattering noise. A bicker of musketry-fire rattled down in the valley, intermingled with the wild yells and defiances of the hillmen, who were making a chapao or night attack on the camp. Arch . Forbes , Souvenirs of some Continents, p. 194. 4. A short rapid run or race; a staggering run, as from lo of equilibrium. [Middle Eng. and Scotch.] Leeward whiles, against my will, I took a bicker . Burns , Death and Dr. Hornbook. bicker2 (bik'ėr), n. [Var. of beaker , q. v.] Α bowl or dish for containing liquor, properly one made of wood; a drinking-cup; also, specifically, in many parts of Scotland, a wooden dish made of staves and hoops, like a tub, for holding food. [Prov. Eng. and Scotch.] bickerer (bik'er-er), n. engages in petty quarrels. One who bickers, or IMG:content-2038.png:[blocks in formation] bickermentt (bik'er-ment), n . [ bicker1 , v ., + -ment.] Contention; conflict. Spenser . bickern (bik'ėrn), n . [Also by popular etym. bickhorn , and bickiron , beak - iron , q. v., also pik- iron ; prop. bicorn , early mod. E. byckorne , by- a bickern (cf. OF. bicorne , corne , bigorne , ML. bicorn a , two-handled =Sp. Pg . bigornia cornu = E. horn , + -ate1 .] Same as bicornous . The art or practice of riding on a bicycle. bicornuous (bī-kôr'nū-us), a . [L. bi- , two-, + bicyclism (bī'si-klizm), n. [ bicycle + -ism .] cornu = E. horn, + -ous.] Same as bicornous . The habit or art of riding the bicycle. N. and bicornute (bī-kô (bī-kôr'nut), a. [ bi -2 + cornute . Cf. bicorn .] Two-horned; bicornous; specifi- cally, in bot . , having two horn-like proce es, bicorporal (bi-kôr pō-ral), later bicorporeus , double-bodied, 1, bi- , two-, + bicolor ous (bi-kul'o-rus), a. biconcave (bi-kon'kāv), a. Hollow or concave on both cave, as a lens. See lens . biconic, biconical (bi-kon'ik, -i-kal), a. [ bi -2 + conic , conical .] Doubly conical; resembling two cones placed base to base. cornute. IMG:content-2039.png:[blocks in formation] bicrenate (bī-krē'nāt), a . [ bi -2 + crenate .] In bot . , doubly crenate: applied to crenate leaves when the crenatures are them- selves crenate. bicrescentic (bī-kre-sen'tik), a . [ bi -2 + crescentic .] Having the form of a double cres- cent. bicrural (bī-krö'ral), a . [ bi -2 + crural.] Having two legs, or two elongations resem- bling legs. bicuspid (bi-kus'pid), a. and n. [ pis ( -pid- ), bi- , two-, + cuspis ( cuspid- ), a point.] I. a. Having two points, fangs, or cusps. Specifically applied (a) In geom ., to a curve having two cusps. (b) In human an at . , (1) to the premo- lar teeth or false molars, of which there are two on each side above and below, replacing the milk-molars; (2) to the mitral valve guarding the left auriculoventricular orifice of the heart, the corresponding right orifice being guarded having two pointed proce es or teeth. Also bicuspidal , bicuspidate . Bicuspid forceps, dentists' forceps with II. n. One of the premolars or false molars in man, of which there are in the adult two on each side, above and below, between the canines and the true molars. They are the teeth which suc- ceed and replace the milk-molars of the child. Also bi- cuspis . bicuspidal (bi-kus'pi-dal), a. Same as bicus- pid : the usual form of the word in geometry. bicuspidate (bi-kus'pi-dāt), a. [ bi -2 + cus- pidate . Cf. bicuspid .] Same as bicuspid . bicuspis (bī-kus'pis), n.; pl. bicuspides (-pi-dēz). [NL.: see bicuspid .] Same as bicuspid . bicycle (bi'si-kl), n. [L. bi- , two-, + cyclus , of the driving-wheel and bringing the rider directly over the "safety" bicycle was introduced, in which the wheels were made of more nearly equal size and for the direct action upon the front wheel was substituted in- direct action upon the rear wheel, by means of a chain and sprocket-wheels, the diameters of the sprocket-wheels being so proportioned as to compensate the decrease in size of the driving-wheel. bicycle (bi'si-kl), v . i .; pret.and pp. bicycled , ppr. bicycling . [ bicycle , n .] To ride on a bicycle. bicycler (bi'si-kler), n. [ bicycle + -er .] One who rides a bicycle. pray, invite, wish, and also (by confusion with bid2 ) command, biddan (pret. bad , pl. bædon, pp. beden ), ask, pray, invite, in some cases equiv. to command, = OS. biddian = OFries. bidda =D. bidden = OHG. bitt an , MHG. G. bitten Icel. bidhja = Sw. bedja = Dan. bede = Goth. bidjan (pret. bath , pl. bedum , pp. bi- dans) (cf. Goth. bidagwa , a beggar, and AS. bede- cian , beg: see beg1 ), perhaps = Gr. ✓ * πιθ (orig. * φιθ ) in πείθειν , πιθεῖν , persuade, move by en- treaty, mid. πείθεσθαι, πιθέσθαι, be persuaded, obey, trust, = L. fidere , trust. Hence, from the AS., E. bead ; from the L., E. faith , fidelity , affy , affidavit , confide, confident, infidel , perfidy , etc. (2) Bid2 , command, order, direct, pro- pose, offer, etc., beoden (which would regularly give E. * beed or * bead ), com- mand, order, offer, announce, also invite (pret. bead, bed, bead , pl. beden , boden , pp. boden ), beódan (pret. beád , pl. bud on , pp. boden ), command, order, offer, announce, threaten, etc., OS. biodan = OFries. biada = D. bieden = OHG. biotan , MHG. G. bieten = Icel. bjōdha = Sw. bjuda = Dan. byde = Goth. biudan (pret. bauth , pl. budum , pp. budans ; only in comp., anabiudan , command, faurbiudan = E. forbid ), command, offer, announce, etc., = Gr. / *πιθ (orig. *φυθ), in πυνθάνεσθαι, πυθέσθαι, learn by asking, ask, = Skt. ✔ budh (orig. * bhudh ), be awake, understand (see Buddha ); cf. OBulg. budeti , be awake. From AS. beódan come bod a , E. bode , a me enger, bodian , E. bode , announce, portend, AS. bydel , E. beadle , etc.: see bodel , bode, beadle. While some senses of bid are obviously those of AS. biddan , and others ob- viously those of AS. beódan , no formal sep a- ration can conveniently be made. The mod. forms correspond to those of AS. biddan , the senses chiefly to those of AS. beódan .] I. trans. 1. To ask; request; invite. Go ye therefore into the highways, and as many as ye shall find bid to the marriage. Mat. xxii. 9. Provide the feast, father, and bid the guests. Shak., T. of the S., ii. 1. 2. To pray; wish earnestly or devoutly; hence, to say by way of greeting or benediction: as, to bid good-day, farewell, etc. IMG:content-2040.png:[blocks in formation] 3. To command; order or direct; enjoin. And Peter answered him and said, Lord, if it be thou, bid me come unto thee on the water. Mat. xiv. 28. Kingsley . [Occasionally a simple infinitive follows: as, "the lady bade take away the fool," Shak ., T N., i. 5.] 4. To offer; propose: as, to bid a price at an auction. The king will bid you battle presently. Shak., 1 Hen. IV., v. 2 Four guineas! Gad's life, you don't bid me the price of his wig. Sheridan, School for Scandal, iv. 1. In buying Books or other Commodities, 'tis not always the best way to bid half so much as the seller asks. Selden , Table-Talk, p. 30. 5. To raise the price of in bidding; increase the amount offered for: with up : as, to bid up a thing beyond its value.-6. To proclaim; make known by a public announcement; de- clare: as, "our bans thrice bid , " Gay , What d'ye Call it? To bid beads, to pray with beads. See IMG:content-2041.png:[blocks in formation] bid Antagonisms between different powers in the State, or different factions, have caused one or other of them to bid for popular support, with the result of increasing popular H. Spencer , Prin. of Sociol., § 498. power. To bid fair, to open or offer a good prospect; seem likely.