| bract | A leaf-like structure, different in form from the foliage leaves and without an axillary bud, associated with an inflorescence or flower. (09 Oct 1997) |
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| bractea | <botany> A bract. Origin: L, a thin plate of metal or wood, gold foil. Source: Websters Dictionary (01 Mar 1998) |
| bracteate | <botany> Having a bract or bracts. Origin: Cf.L. Bracteatus covered with gold plate. Source: Websters Dictionary (01 Mar 1998) |
| bracted | <botany> Furnished with bracts. Source: Websters Dictionary (01 Mar 1998) |
| bracteolate | Furnished with bracteoles. (09 Oct 1997) |
| bracteole | A small bract-like structure borne singly or in pairs on the pedicel or calyx of a flower. (09 Oct 1997) |
| bractless | <botany> Destitute of bracts. Source: Websters Dictionary (01 Mar 1998) |
| bractlet | <botany> A bract on the stalk of a single flower, which is itself on a main stalk that support several flowers. Origin: Bract + -let. Source: Websters Dictionary (01 Mar 1998) |
| Bradford | Edward H., U.S. Orthopedist, 1848-1926. See: Bradford frame. (05 Mar 2000) |
| Bradford frame | An oblong rectangular frame made of pipe, over which are stretched transversely two strips of canvas; permits trunk and lower extremities of a bed-ridden patient to move as a unit. (05 Mar 2000) |
| Bradford method | <investigation> Method for determining protein concentration based upon the binding of Coomassie Brilliant Blue to protein and consequent shift in absorption maximum of the dye. (18 Nov 1997) |
| brady- | Slow. Origin: G. Bradys, slow (05 Mar 2000) |
| bradyarrhythmia | Any disturbance of the heart's rhythm resulting in rates less than 60 beats per minute. (27 Sep 1997) |
| bradyarthria | Abnormal slowness or deliberation in speech. Origin: Gr. Arthroun = to utter distinctly (27 Sep 1997) |
| bradycardia | <clinical sign> A slowness of the heart beat, as evidenced by slowing of the pulse rate to less than 60 beats per minute. Origin: Gr. Kardia = heart (18 Nov 1997) |