a. Bot. [f. EPINAST-Y + -IC.] Of of the nature of, or influenced by, epinasty.
1880. C. & F. Darwin, Movem. Pl., 262. So young that their epinastic growth … overpowered every other kind of movement.
1882. Vines, Sachs’ Bot., 857. As long as the organ grows most rapidly on the dorsal side, it may be termed, after de Vries, hyponastic; afterwards, when it grows most rapidly on the inner or upper side, epinastic.
