Definition

The way a plant or organism grows or moves in response to touching a solid object.

Example

The vine showed thigmotropism by wrapping around the pole as it grew.

Conversation

Have you ever heard of thigmotropism?

No, I haven't! What is it?

It's when plants bend or turn in response to touching a solid surface.

That's interesting! Nature has some amazing ways to adapt.

Synonyms & Antonyms

Root Explanation

Thigmotropism is formed from "thigma" (from Greek "thigma", meaning touch) and "tropism" (from Greek "tropos", meaning turn or change). The word describes the growth or movement of an organism in response to touch or physical contact.

Memory Tip

Think of 'touch' ('thigma') causing a 'turn' or 'change' ('tropism') in growth — that's what thigmotropism means.

Visually Confused Words