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Ir
(redirected from atomic number 77)

    Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson 0.04 sec.
Ir, symbol for the element iridium iridium (ĭrĭd`ēəm), metallic chemical element; symbol Ir; at. no. 77; at. wt. 192.22; m.p. about 2,410°C;; b.p.
..... Click the link for more information. .

(1) (Industry Remarketer) Same as VAR or VAD.

(2) See infrared, IR detector and IrDA.

(3) See information resources.

1.(networking)IR - Internet Registry.
2.(electronics)IR - infrared.
3.(networking)ir - The country code for Iran.
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