Defn: Seneca root.
SENEGAL
Sen"e*gal, n.
Defn: Gum senegal. See under Gum.
SENEGIN
Sen"e*gin, n. (Med. Chem.)
Defn: A substance extracted from the rootstock of the Polygala Senega
(Seneca root), and probably identical with polygalic acid.
SENESCENCE
Se*nes"cence, n. Etym: [See Senescent.]
Defn: The state of growing old; decay by time.
SENESCENT Se*nes"cent, a. Etym: [L. senescent, p. pr. of senescere to grow old, incho. fr. senere to be old.]
Defn: Growing old; decaying with the lapse of time. "The night was senescent." Poe. "With too senescent air." Lowell.
SENESCHAL
Sen"es*chal, n. Etym: [OF. seneschal, LL. seniscalcus, of Teutonic
origin; cf. Goth. sineigs old, skalks, OHG. scalch, AS. scealc. Cf.
Senior, Marshal.]