SEROTINOUS
Se*rot"i*nous, a. Etym: [L. serotinus, fr. serus late.] (Biol.)
Defn: Appearing or blossoming later in the season than is customary with allied species.
SEROUS Se"rous, a. Etym: [Cf. F. séreux. See Serum.] (Physiol.) (a) Thin; watery; like serum; as the serous fluids. (b) Of or pertaining to serum; as, the serous glands, membranes, layers. See Serum. Serous membrane. (Anat.) See under Membrane.
SEROW; SURROW
Ser"ow, Sur"row, n. (Zoöl.)
Defn: The thar.
SERPENS
Ser"pens, n. Etym: [L. See Serpent.] (Astron.)
Defn: A constellation represented as a serpent held by Serpentarius.
SERPENT
Ser"pent, n. Etym: [F., fr. L. serpens, -entis (sc. bestia), fr.
serpens, p. pr. of serpere to creep; akin to Gr. sarp, and perhaps to
L. repere, E. reptile. Cf. Herpes.]
1. (Zoöl.)
Defn: Any reptile of the order Ophidia; a snake, especially a large snake. See Illust. under Ophidia.