- Second letter of the Greek alphabet, β (see entry at start of letter “B's.” [G.]* * *Biomedical Electronics Technicians Association
* * *be·ta 'bāt-ə, chiefly Brit 'bē-tə n1) the second letter of the Greek alphabet symbol ß or ß2) BETA PARTICLE3) BETA WAVEbeta or ß- adj1) of or relating to one of two or more closely related chemical substances <the beta chain of hemoglobin> <ß-yohimbine> used somewhat arbitrarily to specify ordinal relationship or a particular physical form and esp. one that is allotropic, isomeric, stereoisomeric, or sometimes polymeric (as in ß-D-glucose)2) second in position in the structure of an organic molecule from a particular group or atom also occurring at or having a structure characterized by such a position <\beta substitution>3) producing a zone of decolorization when grown on blood media used of some hemolytic streptococci or of the hemolysis they cause
* * *Be·ta (beґtə) [L.] the beets, a genus of herbaceous plants of the family Chenopodiaceae. B. vulgaґris L. is the sugar beet, a commercial source of sucrose. The leafy tops of beets are rich in oxalates and can cause oxalate poisoning in animals that eat them in large amounts.
Medical dictionary. 2011.