| bid | To be taken twice a day (morning and evening). (27 Sep 1997) |
|---|---|
| bidactyly | Abnormality in which the medial digits are lacking, with only the first and fifth represented. See: lobster-claw deformity, ectrodactyly. Origin: bi-+ G. Daktylos, finger (05 Mar 2000) |
| biddy | A name used in calling a hen or chicken. Origin: Etymology uncertain. Source: Websters Dictionary (01 Mar 1998) |
| BIDE | <epidemiology> Birth, Immigration, Death, Emigration: the four demographic processes which might act on a population compartment in a typical compartmental model. (05 Dec 1998) |
| bidentate | <botany> Having two teeth or two toothlike processes; two-toothed. Source: Websters Dictionary (01 Mar 1998) |
| bidet | A tub for a sitz bath, having also an attachment for giving vaginal or rectal infusions. Origin: Fr. A small horse (05 Mar 2000) |
| bidirectional replication | A type of DNA replication where replication is moving along in both directions from the starting point. This creates two replication forks, moving in opposite directions. (09 Oct 1997) |
| bidirectional ventricular tachycardia | Ventricular tachycardia in which the QRS complexes in the electrocardiogram are alternately mainly positive and mainly negative; many such cases may represent ventricular tachycardia with alternating forms of aberrant ventricular conduction. (05 Mar 2000) |
| bidiscoidal | Resembling, or consisting of, two disks. (05 Mar 2000) |
| bidiscoidal placenta | A placenta with two separate disc-shaped portions attached to opposite walls of the uterus, normal for certain monkeys and shrews, and occasionally found in humans. (05 Mar 2000) |
| BIDS | Acronym for brittle hair, impaired intelligence, decreased fertility, and short stature; usually manifested as an inherited deficiency of a high-sulfur protein. (05 Mar 2000) |
| biduous | Rarely used term denoting of two days' duration. Origin: L. Biduus, lasting two days, fr. Bi-+ dies, day (05 Mar 2000) |