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)
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