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单词 ir
释义

WordReference Random House Learner's Dictionary of American English © 2024
ir-1 ,prefix. 
  1. ir- is another form of in-1that is attached to roots beginning with r:ir- + radiate → irradiate.

ir-2 ,prefix. 
  1. ir- is another form of in-2that is attached to roots beginning with r:ir- + reducible → irreducible.

WordReference Random House Unabridged Dictionary of American English © 2024
IR ,
  1. infrared.
  2. Psychologyintelligence ratio.
  3. information retrieval.

Ir ,
  1. ChemistryIrish (def. 4).

Ir ,[Symbol, Chem.]
  1. iridium.

ir-1 ,
  1. var. of in- 2 (by assimilation) before r: irradiate.

ir-2 ,
  1. var. of in- 3 (by assimilation) before r: irreducible.

Ir. ,
  1. Place NamesIreland.
  2. Language Varieties, Place NamesIrish.

I.R. ,
  1. immediate reserve.
  2. Militaryinfantry reserve.
  3. intelligence ratio.
  4. Governmentinternal revenue.

Collins Concise English Dictionary © HarperCollins Publishers::
Ir the chemical symbol for
  1. iridium
Collins Concise English Dictionary © HarperCollins Publishers::
Ir. abbreviation for
  1. Ireland
  2. Irish
Collins Concise English Dictionary © HarperCollins Publishers::
in-, il-, im-, ir- prefix
  1. not; non-: incredible, insincere, illegal, imperfect, irregular
    Compare un-1
Etymology: from Latin in-; related to ne-, nōn not
in-, il-, im-, ir- prefix
  1. in; into; towards; within; on: infiltrate, immigrate
  2. having an intensive or causative function: inflame, imperil
Etymology: from in (prep, adv)
Collins Concise English Dictionary © HarperCollins Publishers::
ir- prefix
  1. a variant of in-1, in-2
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更新时间:2025/2/23 10:41:19