Nastic
//ˈnæstɪk// adj
adj ·Rare ·Advanced level
Definitions
Adjective
- 1 Relating to the response of a plant to a stimulus that does not depend on the location of the stimulus. not-comparable
"Many flowers close themselves at night. This nastic movement is in response to the brightness of the sky."
Example
More examples"Many flowers close themselves at night. This nastic movement is in response to the brightness of the sky."
Etymology
From German nastisch from epinastisch, coined c.1854 by German botanist Karl Friedrich Schimper, from Ancient Greek ναστός (nastós, “pressed together”), from νάσσω (nássō, “to press, cram full”).
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.