/ˌsɛmɪˈluːnət/ SEM-ee-LOON-ut

Definitions

1. adjective

shaped like or forming half of a moon

“The geologists noted the semilunate shape of the fossil’s shell.”

2. noun

A bone in the human wrist, specifically the radius, which has a semilunate shape.

“The patient’s doctor explained that the injury had affected the semilunate bone.”

3. adjective

Having or forming a half-moon shape, especially referring to the scaphoid bone in the human wrist

“The surgeon carefully examined the patient’s semilunate scaphoid bone.”