| miridae | (n) leaf bugs, Syn. Capsidae, family Miridae, family Capsidae |
| mirid bug | (n) a variety of leaf bug, Syn. mirid, capsid |
| osmiridium | (n) a hard and corrosion resistant mineral that is a natural alloy of osmium and iridium (usually containing small amounts of rhodium and platinum); used in needles and pen nibs etc., Syn. iridosmine |