Biuniqueness
a principle providing for a one-to-one correspondence between the phonemic and phonetic levels of -n-lysis.
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- Biprism
a triangular prism with an apex angle slightly less than 180°: when illuminated by a point source of light it produces two overlapping beams that form an interference pattern on a screen. historical examples encyclopaedia britannica, 11th edition, volume 14, slice 6 various noun a prism having a highly obtuse angle to facilitate beam splitting
- Bivalent
chemistry. having a valence of two. having two valences, as aluminum with valences of two and three. genetics. pertaining to -ssociations of two h-m-logous chromosomes. genetics. a pair of bivalent chromosomes, especially when pairing during meiosis. historical examples chambers’s twentieth century dictionary (part 2 of 4: e-m) various the organism as a whole jacques loeb […]
- Bivalve
also called lamellibranch. zoology. any mollusk, as the oyster, clam, scallop, or mussel, of the cl-ss bivalvia, having two sh-lls hinged together, a soft body, and lamellate gills. botany. having two valves, as a seedcase. zoology. having two sh-lls, usually united by a hinge. having two similar parts hinged together. historical examples encyclopaedia britannica, 11th […]
- Bivane
a sensitive vane that measures both the horizontal and vertical components of wind direction.
- Bivinyl
butadiene.