| betacism | A defect in speech in which the sound of b is given to other consonants. Origin: G. Beta, the second letter of the alphabet (05 Mar 2000) |
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| betacyanin | One of several red plant pigments; a betalain. An example is betanin. Elevated in urine of individuals with beeturia. Origin: L. Beta, beet, + G. Kyanos, dark blue substance, + -in (05 Mar 2000) |
| betacyaninuria | Synonym: beeturia. Origin: betacyanin + G. Ouron, urine (05 Mar 2000) |