B
symbol boron
symbol boron
b and b noun Date: 1953 bed-and-breakfast
b and e abbreviation breaking and entering
b and w abbreviation black and white
b cell noun Etymology: B probably from bursa-derived (produced by the bursa of Fabricius Date: 1968 any of the lymphocytes that have antigen-binding antibody molecules on the surface, that comprise the antibody-secreting plasma cells when mature, and that in mammals differentiate in the bone marrow
b complex noun Date: 1934 vitamin b
b gen abbreviation see: BG
b horizon noun Date: 1938 a subsurface soil layer that is immediately beneath the A horizon from which it obtains organic matter chiefly by illuviation and is usually distinguished by less weathering
b lymphocyte noun Date: 1971 B cell
b movie noun Date: 1948 a cheaply produced motion picture
b picture noun Date: circa 1937 B movie
b vitamin noun Date: 1920 any vitamin of the vitamin B complex
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