Instantaneous

Instantaneous
Instantaneous In`stan*ta"ne*ous, a. [Cf. F. instantan['e].] [1913 Webster] 1. Done or occurring in an instant, or without any perceptible duration of time; as, the passage of electricity appears to be instantaneous. [1913 Webster]

His reason saw With instantaneous view, the truth of things. --Thomson. [1913 Webster]

2. At or during a given instant; as, instantaneous acceleration, velocity, etc. [1913 Webster]

{Instantaneous center of rotation} (Kinematics), in a plane or in a plane figure which has motions both of translation and of rotation in the plane, is the point which for the instant is at rest.

{Instantaneous axis of rotation} (Kinematics), in a body which has motions both of translation and rotation, is a line, which is supposed to be rigidly united with the body, and which for the instant is at rest. The motion of the body is for the instant simply that of rotation about the instantaneous axis. -- {In`stan*ta"ne*ous*ly}, adv. -- {In`stan*ta"ne*ous*ness}, n. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Instantaneous — means appearing on the moment, example: *Instantaneous phase *Instantaneous stability *instantaneous power …   Wikipedia

  • instantaneous — [in΄stən tā′nē əs] adj. [ML instantaneus] 1. done, made, or happening in an instant 2. done or made without delay; immediate [an instantaneous reply] 3. existing at a particular instant instantaneously adv. instantaneousness n …   English World dictionary

  • instantaneous — I adjective abrupt, expeditious, hasty, hurried, immediate, instant, occurring in an instant, praesens, prompt, quick, rapid, simultaneous, speedy, subitus, swift, without delay, without perceptible time lapse II index immediate …   Law dictionary

  • instantaneous — 1640s (implied in instantaneously), formed in English from M.L. *instantaneus, from instantem (see INSTANT (Cf. instant) (n.)) on model of spontaneous, simultaneous. Related: Instantaneousness …   Etymology dictionary

  • instantaneous — [adj] immediate direct, fast, hair trigger*, in a flash*, instant, momentary, quick, rapid, spontaneous, transitory; concept 820 Ant. delayed, eventual, late, later …   New thesaurus

  • instantaneous — ► ADJECTIVE 1) occurring or done instantly. 2) Physics existing or measured at a particular instant. DERIVATIVES instantaneity noun instantaneously adverb instantaneousness noun …   English terms dictionary

  • instantaneous — adjective Etymology: Medieval Latin instantaneus, from instant , instans, noun Date: 1651 1. done, occurring, or acting without any perceptible duration of time < death was instantaneous > 2. done without any delay being purposely introduced …   New Collegiate Dictionary

  • instantaneous — instantaneity /in stan tn ee i tee, in steuhn teuh nee /, instantaneousness, n. instantaneously, adv. /in steuhn tay nee euhs/, adj. 1. occurring, done, or completed in an instant: an instantaneous response. 2. existing at or pertaining to a… …   Universalium

  • instantaneous — [[t]ɪ̱nstənte͟ɪniəs[/t]] ADJ GRADED Something that is instantaneous happens immediately and very quickly. Death was not instantaneous because none of the bullets hit the heart. Syn: immediate Derived words: instantaneously ADV ADV with v Airbags… …   English dictionary

  • instantaneous — /ɪnstənˈteɪniəs / (say instuhn tayneeuhs) adjective 1. occurring, done, or completed in an instant: an instantaneous explosion. 2. existing at or relating to a particular instant: the instantaneous position of something. {Medieval Latin… …  

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