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ORDOVICIAN PERIOD Synonyms

There are 5 synonyms of the phrase ordovician period. (exact relations)
There is 0 hypernym of the phrase ordovician period. (close relations)

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Definition of ORDOVICIAN PERIOD

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period

Best Alternative Words for ORDOVICIAN PERIOD


Expand?	Word	Save?	More Syns..		Usage	Type
	age					nounn
	noun • how long something has existed • an era of history having some distinctive feature • a time of life (usually defined in years) at which some particular qualification or power arises • a prolonged period of time • a late time of life verb • begin to seem older; get older • grow old or older • make older
	epoch					nounn
	noun • a period marked by distinctive character or reckoned from a fixed point or event • (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded • a unit of geological time that is a subdivision of a period and is itself divided into ages
	era					nounn
	noun • (baseball) a measure of a pitcher's effectiveness; calculated as the average number of earned runs allowed by the pitcher for every nine innings pitched • a period marked by distinctive character or reckoned from a fixed point or event • a major division of geological time; an era is usually divided into two or more periods
	geological period					noun, adjectiven, adj
	noun • a unit of geological time during which a system of rocks formed
	ordovician					noun, adjectiven, adj
	noun • the period from 500 million to 425 million years ago; characterized by conodonts and ostracods and algae and seaweeds

Alternatives for AGE