Definition of trigonometry
: the study of the properties of triangles and trigonometric functions and of their applications
Recent Examples of trigonometry from the Web
Choosing the right school, however, can be as tricky as trigonometry.
The findings seem self-evident to anyone — i.e., a certain science journalist — who’s ever crammed for days just to scratch out a C-minus in trigonometry, but contradict the conclusions of Great Britain’s national testing agency.
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Origin and Etymology of trigonometry
New Latin trigonometria, from Greek trigōnon + -metria -metry
First Known Use: 1614
TRIGONOMETRY Defined for English Language Learners
Definition of trigonometry for English Language Learners
: a branch of mathematics that deals with relationships between the sides and angles of triangles
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