iodide

Univalent anionic iodine, or a compound of iodine, especially a binary compound of iodine with a more electropositive element.

A compound of iodine with an element more electropositive than itself: thus, sodium iodide, etc.

A binary compound of iodine, or one which may be regarded as binary, in which iodine has a valence of -1.

A binary compound of iodine and another element or radical.

a salt or ester of hydriodic acid