The Collaborative International Dictionary of English v.0.48:
Ir \Ir\ n. (Chem.)
The chemical symbol for iridium, a metallic element of the
platinum group. It has atomic number 77 and an atomic weight
of 192.22.
Syn: iridium.
[WordNet 1.5]
The Collaborative International Dictionary of English v.0.48:
Ir- \Ir-\
A form of the prefix in-. See In-.
[1913 Webster]
V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):
IR
Information Retrieval
V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):
IR
Internet Registry
V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):
IR
Interface Repository (ORB)
Hitchcock's Bible Names Dictionary (late 1800's):
Ir, watchman; city; vision