cos

• Nom ayant deux sens distincts : en mathématiques, rapport du côté adjacent à l'hypoténuse d'un triangle rectangle ; en cuisine, type de salade à longues feuilles vert foncé formant une tête allongée et lâche.

A noun with two distinct meanings: in mathematics, it is the ratio of the adjacent side to the hypotenuse of a right-angled triangle; in culinary contexts, it refers to a type of lettuce with long dark-green leaves forming a loosely packed elongated head.

1. Trigonometric functionB2formalscientific

   The ratio of the length of the adjacent side to the length of the hypotenuse in a right-angled triangle.

   cosinus (fonction trigonométrique)

   • The cosine of 60 degrees is 0.5.
   • In this equation, cos theta equals the adjacent side divided by the hypotenuse.
   • We used the cos function to calculate the angle.

   Synonymescosine

2. Type of lettuceB1formalculinary

   A variety of lettuce with long, dark-green leaves that form a loosely packed, elongated head.

   Laitue romaine

   • I bought a head of cos lettuce for the salad.
   • Cos lettuce is often used in Caesar salads.
   • The leaves of cos lettuce are crisp and slightly bitter.

   Synonymesromaineromaine lettuce