Why this word is great
SELENOTROPISM — [Noun] The property of some plants of turning under the influence of moonlight. From the Greek selēnē ("moon") + tropos ("turn") + -ism (denoting a property or condition). Unlike "heliotropism" (which tracks the sun’s blaze) or "phototropism" (which answers any light, indiscriminate), selenotropism is a rarer, more delicate allegiance. It is the silvered leaves of the moonflower pivoting in the hush of midnight, the slow unfurling of petals under a crescent’s faint glow, or the way certain vines twist toward a sky where the sun has long surrendered—an obedience to something colder, quieter, and far less forgiving.