long bone


noun Anatomy. (in vertebrate animals)

any of the long, cylindrical, marrow-containing bones of the limbs: the long bone of the arm.

Origin of long bone

First recorded in 1855–60

Medical definitions for long bone

long bone

n.

One of the elongated bones of the extremities, consisting of a tubular shaft, which is composed of compact bone surrounding a central marrow-filled cavity, and two expanded portions that usually serve as articulation points.