Definition of citronella
: a lemon-scented grass (Cymbopogon nardus) of southern Asia that yields an oil used in perfumery and as an insect repellent; also : its oil
Recent Examples of citronella from the Web
Alternatives like the citronella spray didn’t work as well and tend to be oily.
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Origin and Etymology of citronella
New Latin, from French citronnelle lemon balm, from citron
First Known Use: circa 1858See Words from the same year
CITRONELLA Defined for English Language Learners
Definition of citronella for English Language Learners
: an oil that smells somewhat like lemons and that is used in candles, lamps, etc., to keep bugs away
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