SEXUAL a.
Of or pertaining to sex, or the sexes; distinguishing sex; peculiar to the distinction and office of male or female; relating to the distinctive genital organs of the sexes; proceeding from, or based upon, sex; as, sexual characteristics; sexual intercourse, connection, or commerce; sexual desire; sexual diseases; sexu…
SINGULAR a.
nd. Addison. Singular point in a curve (Math.), a point at which the curve possesses some peculiar properties not possessed by other points of the curve, as a cusp point, or a multiple point. -- Singular proposition (Logic), a proposition having as its subject a singular term, or a common term limited to an individual…
SMALLPOX n.
A contagious, constitutional, febrile disease characterized by a peculiar eruption; variola. The cutaneous eruption is at first a collection of papules which become vesicles (first flat, subsequently umbilicated) and then pustules, and finally thick crusts which slough after a certain time, often leaving a pit, or scar…
SOLAR a.
Produced by the action of the sun, or peculiarly affected by its influence. They denominate some herbs solar, and some lunar. Bacon. Solar cycle. See under Cycle. -- Solar day. See Day, 2. -- Solar engine, an engine in which the energy of solar heat is used to produce motion, as in evaporating water for a steam engin…