Definitions

1. noun

The upper part of the sternum, or breastbone, to which the clavicles are attached.

“The anatomical study of the manubrium revealed its unique structure and function in the human body.”

2. anatomy

A part of the sternum in birds, formed by the fusion of three or more pairs of sternebrae.

“The manubrium of the bird’s sternum played a crucial role in its respiratory system.”