cacodyl

noun

1. a poisonous oily liquid with a garlicky odor composed of 2 cacodyl groups; undergoes spontaneous combustion in dry air

   noun.substance

   Synonyms tetramethyldiarsine

   Source: WordNet 3.0

2. the univalent group derived from arsine

   noun.substance

   Synonyms arsenic group cacodyl group cacodyl radical

   Source: WordNet 3.0

3. Alkarsin; a colorless, poisonous, arsenical liquid, As₂(CH₃)₄, spontaneously inflammable and possessing an intensely disagreeable odor. It is the type of a series of compounds analogous to the nitrogen compounds called hydrazines.

   noun

   Source: webster1913