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orthotropism

[ awr-tho-truh-piz-uhm ]
/ ɔrˈθɒ trəˌpɪz əm /
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noun
Botany. orthotropic tendency or growth.
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Origin of orthotropism

First recorded in 1880–85; ortho- + -tropism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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