no longer in your possession or control; unable to be found or recovered

a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals

a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process

Simple past tense and past participle of recover, adjective_ freed from illness or injury, found after being lost