Di-mĕn'sion, n.

n. [Lat. dimensio, from dimetiri, dimensus, to measure out, from di, for dis, and metiri, to measure; Fr. & Sp. dimension, Pr. dimencio, It. dimensione.] 1. Measure in a single line, as length, breadth, height, thickness, or circumference; extension;—usually in the plural, measure in length, breadth, and thickness; extent; size; as, the dimensions of a room, or of a ship; the dimensions of a farm, of a kingdom, &c. “Gentlemen of more than ordinary dimensions.” Irving.

2. Reach; application; importance.
3. (Alg.) A literal factor, as numbered in characterizing a term;—it forms with the cardinal numbers a phrase equivalent to degree with the ordinal; thus, a² b² c is a term of five dimensions, or of the fifth degree.