atropism

[a-truh-piz-uh m]
Also at·ro·pin·ism [a-truh-puh-niz-uh m] /ˈæ trə pəˌnɪz əm/.

Origin of atropism

First recorded in 1875–80; atrop(ine) + -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018