Senhor, se-nyōr′, n. the Portuguese form corresponding to the Spanish señor and Italian signor.

Senile, sē′nil, adj. pertaining to old age or attendant on it: aged.—n. Senil′ity, old age: the imbecility of old age. [L. senilissenex, senis, old.]

Senior, sēn′yor, adj. elder: older in office.—n. one older than another, the elder of two persons in one family bearing the same name: one older in office: an aged person: one of the older fellows of a college, a student in the fourth year of the curriculum.—v.i. Sē′niorise, to lord it over.—n. Sēnior′ity, priority of birth, or of service: a body of seniors—also Sē′niory (Shak.). [L., comp. of senex.]

Senna, sen′a, n. the purgative dried leaflets of several species of cassia. [Fr.,—Ar. sena.]

Sennet, sen′et, n. (Shak.) a particular set of notes on the trumpet or cornet.

Sennight, sen′nīt, n. a week. [Seven night.]

Sennit, sen′it, n. a sort of flat, braided cordage.—Also Sinn′et.

Senocular, sē-nok′ū-lar, adj. having six eyes.

Senonian, sē-nō′ni-an, n. (geol.) a division of the upper Cretaceous in France and Belgium.

Señor, se-nyōr′, n. a gentleman: in address, sir: as a title, Mr:—fem. Señora (se-nyō′ra), a lady: in address, madam: as a title, Mrs.—n. Señorita (sen-yō-rē′ta), a young lady: in address, miss: as a title, Miss. [Sp.]