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[si-truh l] /ˈsɪ trəl/
noun, Chemistry.
a pale yellow, water-insoluble, liquid aldehyde, C 10 H 16 O, having a strong lemonlike odor, consisting in natural form of two isomers (citral a or geranial and citral b or neral) usually obtained from the oils of lemon and orange or synthetically: used chiefly in perfumery, flavoring, and the synthesis of vitamin A.
Origin of citral
1890-95; citr(us) + -al1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for citral


a yellow volatile liquid with a lemon-like odour, found in oils of lemon grass, orange, and lemon and used in perfumery: a terpene aldehyde consisting of the cis- isomer (citral-a or geranial) and the trans- isomer (citral-b or neral). Formula: (CH3)2C:CH(CH2)2C(CH3):CHCHO
Word Origin
C19: from citr(us) + -al³
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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