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单词 etiolate
释义

WordReference Random House Unabridged Dictionary of American English © 2024
e•ti•o•late  tē ə lāt′),USA pronunciation v., -lat•ed, -lat•ing. 
v.t. 
  1. Botany, Plant Diseasesto cause (a plant) to whiten or grow pale by excluding light:to etiolate celery.
  2. to cause to become weakened or sickly;
    drain of color or vigor.

v.i. 
  1. Botany, Plant Diseases(of plants) to whiten or grow pale through lack of light.
  • French étioler to make pale, etiolate (plants), probably derivative, based on north, northern French dialect, dialectal forms, of standard French éteule, Old French estoble, estuble stubble; see -ate1
  • 1785–95
e′ti•o•lation, n. 

Collins Concise English Dictionary © HarperCollins Publishers::
etiolate /ˈiːtɪəʊˌleɪt/ vb
  1. to whiten (a green plant) through lack of sunlight
  2. to become or cause to become pale and weak, as from malnutrition
Etymology: 18th Century: from French étioler to make pale, probably from Old French estuble straw, from Latin stipula

ˌetioˈlation n
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