meniscus

• Существительное, обозначающее серповидную структуру или поверхность, например, хрящевой диск, смягчающий сустав, линзу с одной вогнутой и одной выпуклой стороной или изогнутую верхнюю поверхность жидкости в узкой трубке.

A noun referring to a crescent-shaped structure or surface, such as a cartilage disk that cushions a joint, a lens with one concave and one convex side, or the curved upper surface of a liquid in a narrow tube.

irregular plural

1. Cartilage in a jointB2formalmedical

   A crescent-shaped piece of cartilage that acts as a cushion between the bones in a joint, such as the knee.

   Мениск

   • He tore his meniscus while playing soccer.
   • The surgeon repaired the damaged meniscus in her knee.
   • A healthy meniscus helps absorb shock during movement.

   Synonymssemilunar cartilage

2. Lens shapeC1formalscientific

   A lens that is concave on one side and convex on the other, used in optical instruments.

   Менисковая линза

   • The microscope uses a meniscus lens to focus light.
   • Meniscus lenses are common in eyeglasses for certain prescriptions.
   • The optical system was designed with a meniscus element.

3. Liquid surfaceC1formalscientific

   The curved upper surface of a liquid in a narrow tube, caused by surface tension.

   Поверхность жидкости

   • The meniscus of water in a glass tube is concave.
   • When reading a graduated cylinder, you should measure at the bottom of the meniscus.
   • Mercury forms a convex meniscus in a glass container.