epinasty

(redirected from epinastic)
Also found in: Dictionary, Medical.

epinasty

[′ep·ə‚nas·tē]
(botany)
Growth changes in which the upper surface of a leaf grows, thus bending the leaf downward.
References in periodicals archive ?
Also, excised leaf strips of inter-veinal tissue from tobacco respond to auxin treatment with epinastic growth (4).
The growth is epinastic, unrelated to auxin-induced ethylene production, and strongly developmentally regulated with responsiveness correlating with the cell expansion phase of growth.