water on the knee

noun

, Pathology.

1. an accumulation of fluid in the knee cavity caused by inflammation and trauma to the cartilages or membranes of the knee joint.

Word History and Origins

Origin of water on the knee¹

First recorded in 1885–90

Example Sentences

It's aggravated synovitis, and, if you don't want permanent water-on-the-knee, you'll have to lie up for at least three weeks.

From Project Gutenberg