in-(redirected from ir-)
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word element [Gr.], fiber.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
1. Not, akin to G. a-, an-, or Eng. un-.
2. In, within, inside.
3. Very; appears as im- before b, p, or m.
Farlex Partner Medical Dictionary © Farlex 2012
Prefix meaning (1) Not, akin to G. a-, an- or Eng. un-; (2) In, within, inside; (3) Very; appears as im- before b, p, or m.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
in-Prefix denoting not or in, into, within.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005