citronella

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cit·ro·nel·la

 (sĭt′rə-nĕl′ə)
n.
1. A tropical Asian grass (Cymbopogon nardus) that has bluish-green, lemon-scented leaves and yields an essential oil.
2. A pale yellow to brownish aromatic oil obtained from this plant, used chiefly in perfumery and also in some insect repellents and commercial flavorings.

[New Latin, from French citronnelle, lemon oil, diminutive of citron, citron; see citron.]

citronella

(ˌsɪtrəˈnɛlə)
n
1. (Plants) Also called: citronella grass a tropical Asian grass, Cymbopogon (or Andropogon) nardus, with bluish-green lemon-scented leaves
2. (Biochemistry) Also called: citronella oil the yellow aromatic oil obtained from this grass, used in insect repellents, soaps, perfumes, etc
[C19: New Latin, from French citronnelle lemon balm, from citron lemon]

cit•ron•el•la

(ˌsɪ trəˈnɛl ə)

n.
1. a fragrant, S Asian grass, Cymbopogon nardus, cultivated as the source of citronella oil.
[1855–60; < New Latin < French citronelle=citron citron + -elle diminutive suffix]

cit·ro·nel·la

(sĭt′rə-nĕl′ə)
The pale-yellow, lemon-scented oil obtained from the leaves of a tropical Asian grass, used in insect repellents and perfumes.
References in periodicals archive ?
All Pure Pooch shampoos are soap-free and contain a blend of natural neem and citronella oils to help protect dogs from pests in the great outdoors, and yet won't neutralize any needed flea and tick treatments when used as directed.
Today, that advice still is given, even as store shelves are lined with more citronella oils, geranium extracts and other DEET alternatives than ever before.