from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A bloom of dinoflagellates that causes reddish discoloration of coastal ocean waters. Certain dinoflagellates of the genus Gonyamlax produce toxins that kill fish and contaminate shellfish.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. an algal bloom of sufficient quantity to cause discoloration (often red) in a body of water; red tides can potentially cause irritation or death to exposed creatures

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. seawater that is discolored by large numbers of certain dinoflagellates that produce saxitoxin


from red and tide (Wiktionary)


Sorry, no example sentences found.

Wordnik is becoming a not-for-profit! Read our announcement here.


Log in or sign up to get involved in the conversation. It's quick and easy.