Definitions

1. noun

A glass or lens having two or more surfaces curved so that they converge or diverge at a single point, used in spectacles or other optical instruments.

“The inventor designed a new cockeye lens that could correct nearsightedness in older adults.”

2. noun

A defect or irregularity in the shape of a part, especially a joint, such as the hip or knee.

“After the accident, the doctor noticed a cockeye in the patient’s knee joint.”