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diastem

[ dahy-uh-stem ]
/ ˈdaɪ əˌstɛm /
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noun Geology.

a minor hiatus in an orderly succession of sedimentary rocks.

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Origin of diastem

1850–55; <Greek diástēma interval; see diastema

OTHER WORDS FROM diastem

di·a·stem·ic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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