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instantaneous

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The definition of instantaneous is something that happens right away.

(adjective)

If you ask for water and water immediately appears that very second, this is an example of something instantaneous.

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See instantaneous in Webster's New World College Dictionary

adjective

done, made, or happening in an instant
done or made without delay; immediate: an instantaneous reply
existing at a particular instant

Origin: ML instantaneus

Related Forms:

instantaneously adverb
instantaneousness noun

See instantaneous in American Heritage Dictionary 4

adjective

Occurring or completed without perceptible delay: Relief was instantaneous.
Done or made as quickly or directly as possible: an instantaneous reply to my letter.
Present or occurring at a specific instant: instantaneous velocity; instantaneous pressure.

Origin:

Origin: From Medieval Latin īnstantāneus

Origin: , from Latin īnstāns, īnstant-, present; see instant

.

Related Forms:

in·stanˌta·neˈi·ty (ĭn-stănˌtə-nēˈĭ-tē, ĭnˌstən-) noun

inˌstan·taˈne·ous·ly adverb

inˌstan·taˈne·ous·ness noun

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