Magnitude

(mag'ne-tūd.) [From L. magnitudo, greatne .] (Math.) A term which describes whatever is made up of parts locally extended, or has dimensions; as a line, surface, solid, . The apparent M. of a body is that nicasured by the visual angle, formed from rays drawn from its extremes to the centre of the eye; so that all objects seen under the same or equal angles appear equal, and vice vers a. [s. 569]