[ sak-si-tok-sin ]
/ ˌsæk sɪˈtɒk sɪn /


a powerful neurotoxin, C10H17N7O4, produced by the dinoflagellate Gonyaulax catenella, the causative agent of red tide.

Nearby words

  1. saxicoline,
  2. saxicolous,
  3. saxifragaceous,
  4. saxifrage,
  5. saxifrage family,
  6. saxo grammaticus,
  7. saxon,
  8. saxon blue,
  9. saxonism,
  10. saxons

Origin of saxitoxin

1960–65; < New Latin Saxi(domus), a clam genus infected by the dinoflagellates (equivalent to Latin sax(um) stone + -i- -i- + domus house) + toxin Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for saxitoxin


[ săk′sĭ-tŏksĭn ]


A potent neurotoxin produced by certain dinoflagellates that accumulates in shellfish feeding on these organisms and consequently causes food poisoning in humans who eat the shellfish.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.