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Translate files Sine
/ˈsaɪn/
Meaning & Definition
noun
In trigonometry, sine is a function that relates the angle of a right triangle to the ratio of the length of the side opposite the angle to the length of the hypotenuse.
The sine of a 30-degree angle is 0.5.
A mathematical function that describes the wave-like patterns in various fields such as physics and engineering.
The wave can be described using the sine function to represent its oscillatory nature.
In geometry, the sine function is often abbreviated as 'sin'.
The relationship sin(θ) = opposite/hypotenuse is fundamental in trigonometry.
Etymology
From Latin 'sinus', meaning 'bay' or 'fold', derived from its geometric interpretation.
Common Phrases and Expressions
sine qua non
An essential condition or element.
sine die
Without assigning a day for a further meeting.
Related Words
cosine
A trigonometric function representing the ratio of the length of the adjacent side to the hypotenuse.
tangent
A trigonometric function that represents the ratio of the opposite side to the adjacent side.
Slang Meanings
A term often used to refer to a close friend in mathematics or physics circles.
He's my sine; we solve problems together.