(of an angle) a trigonometric function that in a right-angled triangle is the ratio of the length of the hypotenuse to that of the opposite side; the reciprocal of sine
Abbreviation: cosec
CSC in British English
abbreviation for(in Britain)
Civil Service Commission
Civil Service Commission in British English
(ˈsɪvəl ˈsɜːvɪs kəˈmɪʃən)
noun
an official body which regulates the wages and working conditions of civil servants and promotes their work