Definition of momentaneous
1 : momentary 1a the rapid momentaneous association of things which meet and pass — D. H. Lawrence
2 archaic : instantaneous in which momentaneous explosion of the whole quantity all the force consists — William Clarke
3 of an aspect or form of a verb : of, relating to, or characterizing action begun and terminated in an instant
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Origin and Etymology of momentaneous
Late Latin momentaneus, from Latin momentum moment + -aneus (as in subterraneus subterranean)
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