cosine, cos
(noun) ratio of the adjacent side to the hypotenuse of a right-angled triangle
Source: WordNet® 3.1
cosine (plural cosines)
(trigonometry) In a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse. Symbol: cos
In various branches of mathematics, the cosine of an angle is determined in various ways, including the following
• The x-coordinate of the point on the unit circle at the given anticlockwise angle from the x-axis.
• The sum of the real or complex power series
where x is in radians.
• Enciso, Senoic, coines, conies, oscine
Source: Wiktionary
Co"sine (k"sn), n. Etym: [For co. sinus, an abbrev. of L. complementi sinus.] (Trig.)
Definition: The sine of the complement of an arc or angle. See Illust. of Functions.
Source: Webster’s Unabridged Dictionary 1913 Edition
2 April 2025
(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”
The word “coffee” entered the English language in 1582 via the Dutch “koffie,” borrowed from the Ottoman Turkish “kahve,” borrowed in turn from the Arabic “qahwah.” The Arabic word qahwah was traditionally held to refer to a type of wine.
