Definition of: gem

(jem) noun
1. A precious stone, especially when set as an ornament.
2. Anything rare, delicate, and perfect, as a work of literature or art.
3. A carved or engraved semiprecious stone; any jewel.
4. Printing A size of type between brilliant and diamond.
5. A light cake somewhat like a muffin.
—v.t. gemmed, gem·ming To adorn with or as with gems. [OE gim <L gemma jewel]