| Begg light wire differential force technique | An orthodontic appliance utilizing small gauge labial wires with expansion and contraction loops formed into it and attached to bands fitted to individual teeth; sometimes called Begg light wire differential force technique. (05 Mar 2000) |
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| Begg, P Raymond | <person> Australian orthodontist, *1898. See: Begg light wire differential force technique. (05 Mar 2000) |
| beggar's lice | <botany> The prickly fruit or seed of certain plants (as some species of Echinospermum and Cynoglossum) which cling to the clothing of those who brush by them. Source: Websters Dictionary (01 Mar 1998) |
| beggiatoaceae | A family of gram-negative, gliding bacteria usually found in marine or freshwater environments. (12 Dec 1998) |
| beggiatoales | An order of gliding bacteria consisting of cells of widely varying sizes that occur mostly as filaments. (12 Dec 1998) |