He had a torn meniscus , which is the same thing, it's a torn muscle.
In some cases, there may not be a specific injury, but the meniscus can tear due to repetitive loads and chronic degeneration.
DeSagana Diop had surgery yesterday to repair a torn meniscus and will be out four to six weeks.
I recall spending lengthy moments reading the meniscus on a thermometer to determine the precise temperature reading in an experiment.
Petzval produced an achromatic portrait lens that was vastly superior to the simple meniscus lens then in use.
It's the same with lenses; in addition, the self-centering problem is even more pronounced for meniscus shapes and other optics with long focal lengths.
When the water column is cut, the pressure of the water column is increased to atmospheric pressure when the meniscus is flat.
Invented in 1876, the Mangin mirror consists of a meniscus negative lens with a mirrored convex second surface.
a meniscus lens
Another coverslip was placed inside the cylinder floating on top of the liquid layer, in order to obtain a flat meniscus .