GEOTROPISMS
Noun
geotropisms
plural of geotropism
Source: Wiktionary
GEOTROPISM
Ge*ot"ro*pism, n. Etym: [Gr. (Biol.)
Definition: A disposition to turn or incline towards the earth; the
influence of gravity in determining the direction of growth of an
organ.
Note: In plants, organs which grow towards the center of the earth
are said to be positively geotropic, and those growing in the
opposite direction negatively geotropic. In animals, geotropism is
supposed by some to have an influence either direct or indirect on
the plane of division of the ovum.
Source: Webster’s Unabridged Dictionary 1913 Edition