Noun

1. Any function of an angle expressed as the ratio of two of the sides of a right triangle that has that angle, or various other functions that subtract 1 from this value or subtract this value from 1 (such as the versed sine)

Related terms

• cosecant
• cosine
• cotangent
• coversed sine
• excosecant
• exsecant
• hacoversed sine

• haversed sine
• secant
• sine
• tangent
• trigonometry
• versed sine