noun. the end of a long bone; initially separated from the main bone by a layer of cartilage that eventually ossifies so the parts become fused.
noun. a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin.
1. Noun, singular or mass Each epiphysis is capped with articular cartilage that connects the bone to the rest of the body while simultaneously cushioning the end of the bone.