SECONDARY a.
n amputation for injury, performed after the constitutional effects of the injury have subsided. -- Secondary axis (Opt.), any line which passes through the optical center of a lens but not through the centers of curvature, or, in the case of a mirror, which passes through the center of curvature but not through the c…
SENATE n.
In some American colleges, a council of elected students, presided over by the president of the college, to which are referred cases of discipline and matters of general concern affecting the students. [U. S.] Senate chamber, a room where a senate meets when it transacts business. -- Senate house, a house where a sena…
TOURMALINE n.
A mineral occurring usually in three-sided or six-sided prisms terminated by rhombohedral or scalenohedral planes. Black tourmaline (schorl) is the most common variety, but there are also other varieties, as the blue (indicolite), red (rubellite), also green, brown, and white. The red and green varieties when transpare…