guide fossil

guide fossil


Origin:
1905–10
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Guide fossil is always a great word to know.
So is lollapalooza. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a fool or simpleton; ninny.
WordNet
guide fossil

noun
a fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found [syn: index fossil
WordNet® 3.0, © 2006 by Princeton University.
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