Marble  —n. 1 crystalline limestone capable of taking a polish, used in sculpture and architecture. 2 (often attrib.) A anything of marble (marble clock). B anything like marble in hardness, coldness, etc. (her features were marble). 3 a small, esp. Glass, ball as a toy. B (in pl.; treated as sing.) Game using these. 4 (in pl.) Slang one's mental faculties (he's lost his marbles). 5 (in pl.) Collection of sculptures (elgin marbles). —v. (-ling) 1 (esp. As marbled adj.) Stain or colour (paper, soap, etc.) To look like variegated marble. 2 (as marbled adj.) (of meat) striped with fat and lean. [latin marmor from greek]