from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A bloom of plankton, especially dinoflagellates, that causes a usually reddish discoloration of coastal ocean waters. Certain dinoflagellates produce toxins that contaminate shellfish, making them unsafe to eat, and can kill fish.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun an
algal bloomof sufficient quantity to cause discoloration (often red) in a body of water; red tides can potentially cause irritationor death to exposed creatures
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun seawater that is discolored by large numbers of certain dinoflagellates that produce saxitoxin
from Wiktionary, Creative Commons Attribution/Share-Alike License
from red and tide
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