Bifilar micrometer(often called a bifilar), an instrument form measuring minute distances or angles by means of two very minute threads one of which, at least, is movable; — more commonly called a filar micrometer.

(Bi`fla*bel"late) a. [Pref. bi- + flabellate.] (Zoöl.) Flabellate on both sides.

(Bi`fla*gel"late) a. [Pref. bi- + flagellate.] Having two long, narrow, whiplike appendages.

(Bi*flo"rate Bi*flo"rous) a. [L. bis twice + flos, floris, flower.] (Bot.) Bearing two flowers; two- flowered.

(Bi"fold) a. [Pref. bi- + fold.] Twofold; double; of two kinds, degrees, etc. Shak.

(Bi*fo"li*ate) a. [Pref. bi- + foliate.] (Bot.) Having two leaves; two- leaved.

(Bi*fo"li*o*late) a. [Pref. bi- + foliolate.] (Bot.) Having two leaflets, as some compound leaves.

(Bif"o*rate) a. [L. bis twice + foratus, p. p. of forare to bore or pierce.] (Bot.) Having two perforations.

(Bif"o*rine) n. [L. biforis, biforus, having two doors; bis twice + foris door.] (Bot.) An oval sac or cell, found in the leaves of certain plants of the order Araceæ. It has an opening at each end through which raphides, generated inside, are discharged.

(Bi"forked) a. Bifurcate.

1. Twofold; arranged in two rows.

2. (Bot.) Pointing two ways, as leaves that grow only on opposite sides of a branch; in two vertical rows.

(Bi*fa"ri*ous*ly), adv. In a bifarious manner.

(Bif"er*ous) a. [L. bifer; bis twice + ferre to bear.] Bearing fruit twice a year.

(Bif"fin) n. [Cf. Beaufin.]

1. A sort of apple peculiar to Norfolk, Eng. [Sometimes called beaufin; but properly beefin from its resemblance to raw beef.] Wright.

2. A baked apple pressed down into a flat, round cake; a dried apple. Dickens.

(Bi"fid) a. [L. bifidus; bis twice + root of findere to cleave or split: cf. F. bifide.] Cleft to the middle or slightly beyond the middle; opening with a cleft; divided by a linear sinus, with straight margins.

(Bif"i*date) a. [L. bifidatus.] See Bifid.

(Bi*fi"lar) a. [Pref. bi- + filar.] Two-threaded; involving the use of two threads; as, bifilar suspension; a bifilar balance.

  By PanEris using Melati.

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