trigonometry
Plural: trigonometries
Noun
- the mathematics of triangles and trigonometric functions
- The branch of mathematics that deals with the relationships between the sides and angles of (in particular) right-angled triangles, as represented by the trigonometric functions, and with calculations based on said relationships.
Examples
- Historically, trigonometry has been applied in areas such as geodesy, surveying, celestial mechanics and navigation.
- Trigonometry emerged in the Hellenistic world during the 3rd century BCE from applications of geometry to astronomy; the Greeks focused on the calculation of chords, while mathematicians in India created the earliest known tables of values for trigonometric functions such as sine.
Origin / Etymology
PIE word
*tréyes
From 1610s, from New Latin trigōnometria, from Ancient Greek τρίγωνον (trígōnon, “triangle”) + μέτρον (métron, “measure”), equivalent to trigono- + -metry.
Synonyms
Scrabble Score: 18
trigonometry: valid Scrabble (US) TWL Wordtrigonometry: valid Scrabble Word in Merriam-Webster MW Dictionary
trigonometry: valid Scrabble Word in International Collins CSW Dictionary
Words With Friends Score: 20
trigonometry: valid Words With Friends Word