释义 |
WordReference Random House Learner's Dictionary of American English © 2024ir-1 ,prefix. - ir- is another form of in-1that is attached to roots beginning with r:ir- + radiate → irradiate.
ir-2 ,prefix. - 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 © 2024IR ,- infrared.
- Psychologyintelligence ratio.
- information retrieval.
Ir ,- ChemistryIrish (def. 4).
Ir ,[Symbol, Chem.]- iridium.
ir-1 ,- var. of in- 2 (by assimilation) before r: irradiate.
ir-2 ,- var. of in- 3 (by assimilation) before r: irreducible.
Ir. ,- Place NamesIreland.
- Language Varieties, Place NamesIrish.
I.R. ,- immediate reserve.
- Militaryinfantry reserve.
- intelligence ratio.
- Governmentinternal revenue.
Collins Concise English Dictionary © HarperCollins Publishers:: Ir the chemical symbol for - iridium
Collins Concise English Dictionary © HarperCollins Publishers:: Ir. abbreviation for - Ireland
- Irish
Collins Concise English Dictionary © HarperCollins Publishers:: in-, il-, im-, ir- prefix - not; non-: incredible, insincere, illegal, imperfect, irregular
Compare un-1 Etymology: from Latin in-; related to ne-, nōn not in-, il-, im-, ir- prefix - in; into; towards; within; on: infiltrate, immigrate
- having an intensive or causative function: inflame, imperil
Etymology: from in (prep, adv) Collins Concise English Dictionary © HarperCollins Publishers:: ir- prefix - a variant of in-1, in-2
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