) KEY NOUN:
- A tropical Asian grass (Cymbopogon nardus) having bluish-green, lemon-scented leaves and an essential oil.
- 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
; see citron