In(redirected from is in for)
Also found in: Dictionary, Thesaurus, Legal, Financial, Idioms, Encyclopedia.
a chemical element, atomic number 49, atomic weight 114.82. (See Appendix 6.)
indium 111 an artificial isotope of indium, having a half-life of 2.81 days and emitting gamma rays; it is used as a radioactive tracer in nuclear medicine.
INIntraepithelial neoplasia, see these.
1. Symbol for indium
2. Abbreviation for inulin