ep·i·nas·ty

[ep-uh-nas-tee]
noun Botany.
(especially of leaves) increased growth on the upper surface of an organ or part, causing it to bend downward.

Origin:
1875–80; epi- + Greek nast(ós) pressed close + -y3

ep·i·nas·tic, adjective
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epinasty (ˈɛpɪˌnæstɪ) [Click for IPA pronunciation guide]
 
n , pl -ties
Compare hyponasty increased growth of the upper surface of a plant part, such as a leaf, resulting in a downward bending of the part
 
[C19: from epi- + -nasty, from Greek nastos pressed down, from nassein to press]
 
epi'nastic
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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00:10
Epinasty is always a great word to know.
So is ort. Does it mean:
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a scrap or morsel of food left at a meal.
Example sentences
Low levels of ethylene can result in leaf abscission, epinasty and yellowing.
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