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Definition of Cos
1. Noun. Ratio of the adjacent side to the hypotenuse of a right-angled triangle.
2. Noun. Lettuce with long dark-green leaves in a loosely packed elongated head.
Definition of Cos
1. a variety of lettuce [n -ES]
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1. Noun. Ratio of the adjacent side to the hypotenuse of a right-angled triangle.
1. a variety of lettuce [n -ES]