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neral

[neer-al] /ˈnɪər æl/
noun
1.
citral b.
See under citral.
Origin
1935-1940
1935-40; ner(ol) + -al3

citral

[si-truh l] /ˈsɪ trəl/
noun, Chemistry
1.
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
1890-95; citr(us) + -al1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for neral
  • The country's miner als industry continued to show stabilization and rare mi neral and paleontological sites.
  • Ge neral provisions may be of a policy or operational character.
British Dictionary definitions for neral

neral

/ˈnɪəræl/
noun
1.
(chem) the trans- isomer of citral
Word Origin
C20: from nerol (an alcohol from neroli oil) + -al³

citral

/ˈsɪtrəl/
noun
1.
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
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for neral

citral

a pale yellow liquid, with a strong lemon odour, that occurs in the essential oils of plants. It is insoluble in water but soluble in ethanol (ethyl alcohol), diethyl ether, and mineral oil. It is used in perfumes and flavourings and in the manufacture of other chemicals. Chemically, citral is a mixture of two aldehydes that have the same molecular formula but different structures.

Learn more about citral with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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