apheliotropism
Americannoun
Etymology
Origin of apheliotropism
First recorded in 1875–80; apheliotrop(ic) + -ism
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Many organs bend downwards through epinasty or apheliotropism or from their own weight; but we have met with very few cases of a downward movement in sub-aërial organs due to geotropism.
From The Power of Movement in Plants by Darwin, Charles
Whether the sinking was due to epinastic growth, or apheliotropism, we do not know.
From The Power of Movement in Plants by Darwin, Charles
We are thus led to infer that the downward curvature is due to apheliotropism; though more trials ought to have been made.
From The Power of Movement in Plants by Darwin, Charles
Apheliotropism.—We succeeded in observing only two cases of apheliotropism, for these are somewhat rare; and the movements are generally so slow that they would have been very troublesome to trace.
From The Power of Movement in Plants by Darwin, Charles
As this latter movement occurred in complete darkness, and with peduncles arising from upright and from dependent branches, it cannot be due to apheliotropism or to epinasty, but must be attributed to geotropism.
From The Power of Movement in Plants by Darwin, Charles
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
