| etiolation | (noun) (botany) the act of causing a plant to develop without chlorophyll by growing it without exposure to sunlight | - |
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| (noun) the act of weakening by stunting the growth or development of something | - |
| (noun) a pale and sickly appearance | - |
| etiologist | (noun) a specialist in the etiology of diseases | Synonyms: aetiologist |
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| etiology | (noun) the philosophical study of causation | Synonyms: aetiology |
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| (noun) the cause of a disease | Synonyms: aetiology |
| etiquette | (noun) rules governing socially acceptable behavior | - |
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