Defn: A genus of mosslike plants, the type of the order Lycopodiaceæ; club moss. Lycopodium powder, a fine powder or dust composed of the spores of Lycopodium, and other plants of the order Lycopodiaceæ. It is highly inflammable, and is sometimes used in the manufacture of fireworks, and the artificial representation of lightning.

LYCOTROPOUS
Ly*cot"ro*pous, a. Etym: [Gr. (Bot.)

Defn: Campylotropous.

LYDDITE
Lydd"ite, n. (Chem.)

Defn: A high explosive consisting principally of picric acid, used as a shell explosive in the British service; — so named from the proving grounds at Lydd, England.

LYDEN
Lyd"en, n.

Defn: See Leden. [Obs.] Chaucer.

LYDIAN
Lyd"i*an, a. Etym: [L. Lydius, fr. Lydia, Gr.

Defn: Of or pertaining to Lydia, a country of Asia Minor, or to its inhabitants; hence, soft; effeminate; — said especially of one of the ancient Greek modes or keys, the music in which was of a soft, pathetic, or voluptuous character. Softly sweet in Lydian measures, Soon he soothed his soul to pleasures. Dryden. Lydian stone, a flint slate used by the ancients to try gold and silver; a touchstone. See Basanite.

LYDINE
Lyd"ine, n. (Dyeing)