cos

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.

• 🌐اسم يحمل معنيين مختلفين: في الرياضيات هو نسبة الضلع المجاور للزاوية إلى الوتر في المثلث القائم الزاوية؛ وفي السياق الغذائي هو نوع من الخس ذو أوراق طويلة خضراء داكنة تشكل رأساً رخواً ممتداً.

1. Trigonometric function B2 formal scientific

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

   • 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.

   🌐جيب التمام

   المرادفات: cosine

2. Type of lettuce B1 formal culinary

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

   • 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.

   🌐خس رومي

   المرادفات: romaineromaine lettuce