| 单词 | orthotropism |
| 释义 | orthotropism in American English (ɔrˈθɑtrəˌpɪzəm) noun growth, or a tendency to grow, in a vertical direction or position Word origin ortho- + -tropismorthotropism in American English (ɔrˈθɑtrəˌpɪzəm) noun Botany orthotropic tendency or growth Word origin [1880–85; ortho- + -tropism]This word is first recorded in the period 1880–85. Other words that entered Englishat around the same time include: Chief of Staff, barnstorm, interface, irredentist, regionalismortho- is a combining form occurring in loanwords from Greek, where it meant “straight,”“upright,” “right,” “correct” (orthodox) and on this model used in the formation of compound words (orthopedic). Other words that use the affix ortho- include: orthochromatic, orthogonal, orthophosphoric acid, orthophyric, orthoscope |
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