SERPIGO
Ser*pi"go, n. Etym: [LL., fr. L. serpere to creep.] (Med.)

Defn: A dry, scaly eruption on the skin; especially, a ringworm.

SERPOLET
Ser"po*let, n. Etym: [F.] (Bot.)

Defn: Wild thyme.

SERPULA
Ser"pu*la, n.; pl. Serpulæ, E. Serpulas. Etym: [L., a little snake.
See Serpent.] (Zoöl.)

Defn: Any one of numerous species of tubicolous annelids of the genus Serpula and allied genera of the family Serpulidæ. They secrete a calcareous tube, which is usually irregularly contorted, but is sometimes spirally coiled. The worm has a wreath of plumelike and often bright-colored gills around its head, and usually an operculum to close the aperture of its tube when it retracts.

SERPULIAN; SERPULIDAN
Ser*pu"li*an, Ser*pu"li*dan, n. (Zoöl.)

Defn: A serpula.

SERPULITE
Ser"pu*lite, n.

Defn: A fossil serpula shell.