living stone (Noun) — Any plant of the genus Lithops native to Africa having solitary yellow or white flowers and thick leaves that resemble stones.
living stone (Noun) — Scottish missionary and explorer who discovered the Zambezi River and Victoria Falls (1813-1873).
living stone (Noun) — Low-growing showy succulent annual of South Africa having white, pink, red or orange flowers and spatulate leaves covered in papillae that resemble small crystals.