Etiolated

[ee-tee-uh-leyt] /ˈi ti əˌleɪt/

verb (used with object), etiolated, etiolating.
1.
to 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.
verb (used without object), etiolated, etiolating.
3.
(of plants) to whiten or grow pale through lack of light.
/ˈiːtɪəʊˌleɪt/
verb
1.
(botany) to whiten (a green plant) through lack of sunlight
2.
to become or cause to become pale and weak, as from malnutrition
v.

of plants, “grown in darkness,” 1791, from French étiolé, past participle of étioler “to blanch” (17c.), perhaps literally “to become like straw,” from Norman dialect étule “a stalk,” Old French esteule “straw, field of stubble,” from Latin stipula “straw.” Related: Etiolated.

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Etiolation
[ee-tee-uh-leyt] /ˈi ti əˌleɪt/ verb (used with object), etiolated, etiolating. 1. to 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. verb (used without object), etiolated, etiolating. 3. (of plants) to whiten or grow pale through lack […]
Etiologic
[ee-tee-uh-loj-ik] /ˌi ti əˈlɒdʒ ɪk/ adjective 1. of or relating to causes or origins. 2. Pathology. originating from; causal: etiologic agent. 3. of or relating to .
Etiological
[ee-tee-uh-loj-ik] /ˌi ti əˈlɒdʒ ɪk/ adjective 1. of or relating to causes or origins. 2. Pathology. originating from; causal: etiologic agent. 3. of or relating to .

Etiologist
[ee-tee-ol-uh-jee] /ˌi tiˈɒl ə dʒi/ noun, plural etiologies. 1. Pathology. 2. the study of causation. 3. any study of causes, causation, or causality, as in philosophy, biology, or physics. /ˌiːtɪˈɒlədʒɪ/ noun (pl) -gies 1. a variant spelling of aetiology n. “science of causes or causation,” 1550s, from Late Latin aetiologia, from Greek aitiologia “statement of […]
Etiology
[ee-tee-ol-uh-jee] /ˌi tiˈɒl ə dʒi/ noun, plural etiologies. 1. Pathology. 2. the study of causation. 3. any study of causes, causation, or causality, as in philosophy, biology, or physics. /ˌiːtɪˈɒlədʒɪ/ noun (pl) -gies 1. a variant spelling of aetiology n. “science of causes or causation,” 1550s, from Late Latin aetiologia, from Greek aitiologia “statement of […]