cosine
co·sine
noun
1.
ratio of the adjacent side to the hypotenuse of a right-angled triangle
Origin
From co- + sine, short for complementi sinus in Latin, meaning “sine of the complement”.
Related words
Word family
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.