cos

English Thesaurus

1. lettuce with long dark-green leaves in a loosely packed elongated head (noun.food)

hypernym	:	lettuce,
definition	:	leaves of any of various plants of Lactuca sativa (noun.food)

2. ratio of the adjacent side to the hypotenuse of a right-angled triangle (noun.linkdef)

hypernym	:	circular function, trigonometric function,
definition	:	function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle (noun.linkdef)