from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun organic chemistry The derivative of
betaine(CH3)3As+CH2COO- in which arsenicreplaces the nitrogenatom
from Wiktionary, Creative Commons Attribution/Share-Alike License
Although some fish and shellfish take in arsenic — which may build up in tissues — most of this arsenic is in an organic form called arsenobetaine (commonly called "fish arsenic") that is much less harmful.