Synonyms for Cacodyl (same or very similar meaning)
WordNet sense 1 (a poisonous oily liquid with a garlicky odor composed of 2 cacodyl groups; undergoes spontaneous combustion in dry air):
tetramethyldiarsineWordNet sense 2 (the univalent group derived from arsine):
arsenic group, cacodyl group, cacodyl radicalFrom the ODE community, based on WordNetadd/edit