- (especially of leaves) increased growth on the upper surface of an organ or part, causing it to bend downward.
Origin of epinasty
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for epinasty
Young leaves exhibit moreover a pronounced hyponasty or epinasty, which would naturally modify the diurnal curve.Life Movements in Plants, Volume II, 1919
Sir Jagadis Chunder Bose
- increased growth of the upper surface of a plant part, such as a leaf, resulting in a downward bending of the partCompare hyponasty
C19: from epi- + -nasty, from Greek nastos pressed down, from nassein to press