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Meaning of instantaneous

in•stan•ta•ne•ous

Pronunciation: (in"stun-tā'nē-us), [key]
— adj.
  1. occurring, done, or completed in an instant: an instantaneous response.
  2. existing at or pertaining to a particular instant: the instantaneous position of the rocket.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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