sine /saɪn/
noun [countable] technical (
written abbreviation sin)
[
Date: 1500-1600;
Language: Medieval Latin;
Origin: sinus, from Latin; ⇒ sinus]
the
fraction(2) calculated for an angle by dividing the length of the side opposite it in a
triangle that has a
right angle, by the length of the side opposite the right angle
⇒
cosine,
tangent [TahlilGaran] Dictionary of Contemporary English ▲