• WordNet 3.6
    • adj momentaneous lasting for a markedly brief time "a fleeting glance","fugitive hours","rapid momentaneous association of things that meet and pass","a momentary glimpse"
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Webster's Revised Unabridged Dictionary
    • a Momentaneous Momentary. "Momentany as a sound."
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Century Dictionary and Cyclopedia
    • momentaneous Lasting for a moment; momentary.
    • momentaneous Pertaining to instants of time; instantaneous.
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Webster's Revised Unabridged Dictionary
L. momentaneus,: cf. F. momentané,


In literature:

She was an odd, sensitive, inflammable child, having her father's dark hair and quiet bearing, but being quite detached, momentaneous.
"Women in Love" by D. H. Lawrence
Whether any man is enabled by his acuteness and experience, to determine all these questions upon momentaneous reflection, I cannot decide.
"The Works of Samuel Johnson, Vol. 10." by Samuel Johnson
And this beauty thus revealed, this perpetuation of momentaneity, only realizes itself practically, only lives through the work of charity.
"Tragic Sense Of Life" by Miguel de Unamuno
I felt my sound Sardinian soul melting off me, I felt myself evaporating into the real Italian uncertainty and momentaneity.
"Sea and Sardinia" by D. H. Lawrence

In science:

By reducing the characterization of the momentaneous configuration to a few length parameters we can illustrate the slowing of the evolution near the fixed point.
Non-thermal fixed points: universality, topology, & turbulence in Bose gases