One entry found for trigonometry.

Main Entry: trig·o·nom·e·try
Pronunciation: trig--näm--tr
Function: noun
Etymology: from scientific Latin trigonometria, literally "triangle measurement," derived from Greek tri- "three" and Greek gonia "angle" and Greek -metria "art or science of measuring"
: a branch of mathematics concerned with the study of the properties of triangles and trigonometric functions and of their practical uses