Index of English words, starting with "sp"

(1) - Sphalerite (n.) Zinc sulphide; -- called also blende, black-jack, false galena, etc. See Blende (a).

(1) - Sphene (n.) A mineral found usually in thin, wedge-shaped crystals of a yellow or green to black color. It is a silicate of titanium and calcium; titanite.

(1) - Sphenoid (n.) The sphenoid bone.
(2) - Sphenoid (n.) A wedge-shaped crystal bounded by four equal isosceles triangles. It is the hemihedral form of a square pyramid.
(3) - Sphenoid (a.) Of or pertaining to the sphenoid bone.
(4) - Sphenoid (a.) Wedge-shaped; as, a sphenoid crystal.

(1) - Spheral (a.) Rounded like a sphere; sphere-shaped; hence, symmetrical; complete; perfect.
(2) - Spheral (a.) Of or pertaining to a sphere or the spheres.

(1) - Sphere (v. t.) To form into roundness; to make spherical, or spheral; to perfect.
(2) - Sphere (v. t.) To place in a sphere, or among the spheres; to insphere.
(3) - Sphere (n.) An orbit, as of a star; a socket.
(4) - Sphere (n.) Rank; order of society; social positions.
(5) - Sphere (n.) Circuit or range of action, knowledge, or influence; compass; province; employment; place of existence.
(6) - Sphere (n.) The extension of a general conception, or the totality of the individuals or species to which it may be applied.
(7) - Sphere (n.) In ancient astronomy, one of the concentric and eccentric revolving spherical transparent shells in which the stars, sun, planets, and moon were supposed to be set, and by which they were carried, in such a manner as to produce their apparent motions.
(8) - Sphere (n.) The apparent surface of the heavens, which is assumed to be spherical and everywhere equally distant, in which the heavenly bodies appear to have their places, and on which the various astronomical circles, as of right ascension and declination, the equator, ecliptic, etc., are conceived to be drawn; an ideal geometrical sphere, with the astronomical and geographical circles in their proper positions on it.
(9) - Sphere (n.) Hence, any globe or globular body, especially a celestial one, as the sun, a planet, or the earth.
(10) - Sphere (n.) A body or space contained under a single surface, which in every part is equally distant from a point within called its center.