Search Result for "saxitoxin": 
Wordnet 3.0

NOUN (1)

1. a powerful neurotoxin produced by certain dinoflagellates found in red tides; it can accumulate in mollusks that feed on the dinoflagellates and cause food poisoning to humans; 



WordNet (r) 3.0 (2006):

saxitoxin
    n 1: a powerful neurotoxin produced by certain dinoflagellates
         found in red tides; it can accumulate in mollusks that feed
         on the dinoflagellates and cause food poisoning to humans