D defs.my
Entry 2 senses Webster, 1913

Hydrotropism

· Hy·drot·ro·pism · IPA
01 n. A tendency towards moisture.
  1. 1.
    A tendency towards moisture.(Bot.)
  2. 2.
    In a broader sense, any curvature or turning induced in certain growing plant organs under the influence of moisture.(Bot.)