Definitions for ir-

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Random House Webster's College Dictionary

IR

  1. infrared.

    Category: Physics

Ir

  1. Irish.

    Category: Peoples

Ir*

  1. iridium.

    Category: Chemistry

* Chem. Symbol..

ir-

  1. irradiate.

    Category: Affix

    Ref: var. of in-2 4 2 (by assimilation) before r:

ir-

  1. irreducible.

    Category: Affix

    Ref: var. of in-3 4 3 (by assimilation) before r:

Ir.

  1. Ireland.

    Category: Geography (places)

Wiktionary

  1. ir-(Prefix)

    not; negation.

  2. Origin: Variant of in- by assimilation, used before r.

Webster Dictionary

  1. Ir-(u)

    a form of the prefix in-. See In-


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