A colorless fragrant liquid, C10 H18 O, obtained from citronella and certain other essential oils or produced synthetically and used in making perfumes, flavorings, and insect repellants.
A colorless liquid, C10H18O, with a very strong lemon odor, found in lemons and eucalyptus oil, and used in perfumes and soaps.
Origin of citronellal
- citronell(a) –al
From American Heritage Dictionary of the English Language, 5th Edition