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citronellal

American  
[si-truh-nel-al, -uhl] / ˌsɪ trəˈnɛl æl, -əl /

noun

  1. a colorless, slightly water-soluble liquid mixture of isometric aldehydes having the formula C 10 H 18 O, with a strong lemonlike odor, occurring in many essential oils, usually derived from lemon, citronella oil, and other oils: used chiefly as a flavoring agent and in the manufacture of perfume.


citronellal British  
/ ˌsɪtrəˈnɛlæl /

noun

  1. Also called: rhodinal.  a colourless slightly water-soluble liquid with a lemon-like odour, a terpene aldehyde found esp in citronella and certain eucalyptus oils: used as a flavouring and in soaps and perfumes. Formula: (CH 3 ) 2 C:CH(CH 2 ) 2 CH(CH 3 )CH 2 CHO

"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

Etymology

Origin of citronellal

First recorded in 1890–95; citronell(a) + -al 3

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Montell’s Current Biology study focused on a different bug deterrent: citronellal, the lemon-scented botanical chemical that is common in tiki torches and outdoor candles.

From US News

Vapor containing citronellal repulses fruit flies in two very different ways, the researchers found.

From US News

And the lemony-fresh molecule citronellal stinks in two very different ways, a study appearing the same day in Current Biology finds.

From US News

When the researchers genetically interfered with either TRPA1 or the smell receptor, the flies no longer avoided citronellal, suggesting that both were required for the aversion.

From US News

The oil contains some 90 per cent. limonene, together with nonyl alcohol, d-linalol, d-terpineol, citral, citronellal, decyl aldehyde, and methyl anthranilate.

From Project Gutenberg