phototropism

noun 0.778

heliotrope

noun 0.778

geotropism

noun 0.744

tropism

noun 0.712

phototaxis

noun 0.659

helio

noun 0.599

heliocentrism

noun 0.590

epidermotropism

noun 0.574

geotaxis

noun 0.570

thermotaxis

noun 0.565

photomorphogenesis

noun 0.554

photoperiodism

noun 0.552

pyrheliometer

noun 0.547

tropology

noun 0.523

helicity

noun 0.522

hypertropia

noun 0.522

heliograph

noun 0.518

phyllotaxy

noun 0.517

tropia

noun 0.514

helioseismology

noun 0.513

phyllotaxis

noun 0.510

heliconia

noun 0.508

autotrophy

noun 0.506

helicoid

noun 0.504

phototroph

noun 0.500