Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun organic chemistry  The derivative of betaine (CH3)3As+CH2COO- in whicharsenic replaces thenitrogen atom
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
From arseno- + betaine
			
		
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Examples
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								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. 
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