Meaning of trigonometry

trig•o•nom•e•try

Pronunciation: (trig"u-nom'i-trē), [key]
— n.
  1. the branch of mathematics that deals with the relations between the sides and angles of plane or spherical triangles, and the calculations based on them.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also: