Meaning of INSTANTANEOUS in English

|inztən|tānēəs, |in(t)stə-, -ānyəs adjective

Etymology: Medieval Latin instantaneus, from Latin instant-, instans (present participle) + -aneus (as in subterraneus subterranean)

1. : done, occurring, or acting without any perceptible duration of time

instantaneous death

instantaneous heaters


a. : done without any delay being introduced purposely

instantaneous action

b. of a sound recording : capable of being used as soon as recorded

3. : occurring or present at a particular instant

instantaneous value

instantaneous velocity

instantaneous voltage

• in·stan·ta·ne·ous·ly adverb

• in·stan·ta·ne·ous·ness noun -es

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.