in general, the act of increasing the number of any thing.

Multiplication in arithmetic, is a rule by which any given number may be speedily increased, according to any proposed number of times. See Arithmetic, p. 371.

in algebra. See Algebra, p. 81.

MULTICATOR, or Multiplier, in arithmetic. See Arithmetic, p. 371.

MULTIPLYING glass, in optics, one wherein objects appear increased in number. See Optics.