Of or relating to geotropism; involving or exhibiting geotropism.

Bending or turning in a particular direction under the influence of light; pertaining to or marked by heliotropism. Said of, or in reference to…

Botany. Originally: designating or relating to movements of plants in response to change in the intensity of light; nyctinastic. Later: designating…

Bending or turning away from the sun: said of leaves, and other parts of plants.

Bending or turning away from the ground. (Said of leaves and other parts of plants.)

= nyctinastic, adj.

Relating to or characterized by paraheliotropism; (of leaves or their movements) turning to reduce intense illumination.

Designating or relating to a plant part or organ that tends to take up an oblique or horizontal position with relation to the main axis, usually…

Chiefly Biology. Characterized by or exhibiting (positive or negative) phototropism; responding to light with orientated movement or growth; esp.…

Bending or turning under the influence of moonlight.

Of the nature of rheotropism; exhibiting or characterized by rheotropism.

Botany. Of a stem, root, etc.: having a tendency to grow in a vertical direction, upwards or downwards. More widely: growing directly towards or…

Turning or bending under the influence of heat; of, pertaining to, or exhibiting thermotropism.

A peculiar growth or curvature of an organism (esp. a plant) resulting from a wound. traumaˈtropic adj. of, pertaining to, or of the nature of…

= plagiotropic, adj.

Bending or turning away from the light (cf. apheliotropic, adj.).

= orthotropic, adj. 1. rare.