Cos: Definition with Cos Pictures and Photos

1. Noun. Ratio of the adjacent side to the hypotenuse of a right-angled triangle.

Exact synonyms: Cosine
Generic synonyms: Circular Function, Trigonometric Function

2. Noun. Lettuce with long dark-green leaves in a loosely packed elongated head.

Exact synonyms: Cos Lettuce, Romaine, Romaine Lettuce
Generic synonyms: Lettuce

1. a variety of lettuce [n -ES]

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