tropotacticadj.
/ˌtrɒpəˈtaktɪk/, U.S. /ˌtroʊpəˈtæktɪk/, /ˌtrɑpəˈtæktɪk/ Zoology.
Of, relating to, or of the nature of tropotaxis; involving tropotaxis.
ΘΚΠ
the world > life > biology > biological processes > movement > movement in response to stimuli > [adjective] > according to stimulus direction
tropotactic1931
1931 Biol. Rev. & Biol. Proc. Cambr. Philos. Soc. 6 82 The tropotactic nature of a reaction can be demonstrated in one of the following ways: (a) If a sense-organ is extirpated, circus-movement results. [etc.]
1979 Experientia 35 1457/1 Widely separated nares..would appear to be an adaptation for tropotactic olfactory perception.
2008 R. V. Rial et al. in H. Liljenström & P. Århem Consciousness Transitions iii. 53 Moths remain trapped in a tropotactic movement, endlessly turning to the direction of the more illuminated eye.
This entry has been updated (OED Third Edition, March 2014; most recently modified version published online March 2022).
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adj.1931