LEMNISCATA; LEMNISCATE Lem`nis*ca"ta, Lem*nis"cate, n. Etym: [L. lemniscatus adorned with ribbons, fr. lemniscus a ribbon having down, Gr. (Geom.)

Defn: A curve in the form of the figure 8, with both parts symmetrical, generated by the point in which a tangent to an equilateral hyperbola meets the perpendicular on it drawn from the center.

LEMNISCUS
Lem*nis"cus, n.; pl. Lemnisci () Etym: [L. See Lemniscata.] (Zoöl.)

Defn: One of two oval bodies hanging from the interior walls of the body in the Acanthocephala.

LEMON Lem"on, n. Etym: [F. limon, Per. lim; cf. Ar.laim, Sp. limon, It. limone. Cf. Lime a fruit.]

1. (Bot.)

Defn: An oval or roundish fruit resembling the orange, and containing a pulp usually intensely acid. It is produced by a tropical tree of the genus Citrus,the common fruit known in commerce being that of the species C. Limonum or C. Medica (var. Limonum). There are many varieties of the fruit, some of which are sweet.

2. The tree which bears lemons; the lemon tree. Lemon grass (Bot.), a fragrant East Indian grass (Andropogon Shoenanthus, and perhaps other allied species), which yields the grass oil used in perfumery. — Lemon sole (Zoöl.), a yellow European sole (Solea aurantiaca). — Salts of lemon (Chem.), a white crystalline substance, inappropriately named, as it consists of an acid potassium oxalate and contains no citric acid, which is the characteristic acid of lemon; — called also salis of sorrel. It is used in removing ink stains. See Oxalic acid, under Oxalic. [Colloq.]

LEMONADE
Lem`on*ade", n. Etym: [F. limonade; cf. Sp. limonada, It. limonata.
See Lemon.]

Defn: A beverage consisting of lemon juice mixed with water and sweetened.