Defn: A light thin stuff of silk. [Written also cendal, and sendal.]
Chaucer.
Wore she not a veil of twisted sendal embroidered with silver Sir W.
Scott.

SENDER
Send"er, n.

Defn: One who sends. Shak.

SENECAS
Sen"e*cas, n. pl.; sing. Seneca (. (Ethnol.)

Defn: A tribe of Indians who formerly inhabited a part of Western New York. This tribe was the most numerous and most warlike of the Five Nations. Seneca grass(Bot.), holy grass. See under Holy. — Seneca eil, petroleum or naphtha. — Seneca root, or Seneca snakeroot (Bot.), the rootstock of an American species of milkworth (Polygala Senega) having an aromatic but bitter taste. It is often used medicinally as an expectorant and diuretic, and, in large doses, as an emetic and cathartic. [Written also Senega root, and Seneka root.]

SENECIO Se*ne"ci*o, n. Etym: [L., groundsel, lit., an old man. So called in allusion to the hoary appearance of the pappus.] (Bot.)

Defn: A very large genus of composite plants including the groundsel and the golden ragwort.

SENECTITUDE
Se*nec"ti*tude, n. Etym: [L. senectus aged, old age, senex old.]

Defn: Old age. [R.] "Senectitude, weary of its toils." H. Miller.

SENEGA
Sen"e*ga, n. (Med.)