də¦mōik- noun
Etymology: part translation of Japanese dōmoi-san , from dōmoi , a name for the alga Chondria armata + san acid
: a neurotoxic analogue C 15 H 21 NO 6 of glutamic acid that is produced by some diatoms (especially genus Pseudonitzschia ) and has caused poisoning in vertebrates (as whales, birds, and humans) that have consumed diatom-contaminated fish or shellfish