found: Wikipedia, Nov. 7, 2006(Gravitropism (or geotropism) is a turning or growth movement by a plant or fungi in response to gravity.)
found: The American heritage dict. of the Engl. lang., via WWW, Nov. 7, 2006(geotropism: The growth of a living organism in response to gravity, as the downward growth of plant roots)
found: Encarta dict., via WWW, Nov. 7, 2006(geotropism: plant growth related to gravity: plant growth or movement in response to gravity. Upward growth of plant parts, against gravity, is called negative geotropism, and downward growth of roots is called positive geotropism)
found: Merriam-Webster online dict., Nov. 7, 2006(geotropism: : a tropism (as of plant roots) in which gravity is the orienting factor)
found: Infoplease dict., via WWW, Nov. 7, 2006(geotropism: oriented growth with respect to the force of gravity)
