| 单词 | phototropism |
| 释义 | phototropism (extremely rare) n WORD FAMILY phototropism USAGE EXAMPLESThus the term phototropism means a turning or orientation brought about by means of light. Guyer, Michael F., Being Well-Born—An Introduction to...(2012) This phototropism extends all the way down to much smaller photosynthetic organisms. Scientific American(May 13, 2012) n an orienting response to light Hyper tropism an involuntary orienting response; positive or negative reaction to a stimulus source |
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