Situated beneath the back part of the corpus callosum

• Initially separated from the main bone by a layer of cartilage that eventually ossifies so the parts become fused
• Secretes melatonin
• The end of a long bone
• A small endocrine gland in the brain

Wiktionary Word definitions in Wiktionary
n. 1 (context anatomy English) The pineal gland. 2 (context skeleton English) The rounded end of any long bone.

WordNet Word definitions in WordNet
n. 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 a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin ...

Wikipedia Word definitions in Wikipedia
The epiphysis is the rounded end of a long bone , at its joint with adjacent bone(s). Between the epiphysis and diaphysis (the long midsection of the long bone) lies the metaphysis , including the epiphyseal plate (growth plate). At the joint, the epiphysis ...

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Pineal \Pi"ne*al\, a. [L. pinea the cone of a pine, from pineus of the pine, from pinus a pine: cf. F. pin['e]ale.] Of or pertaining to a pine cone; resembling a pine cone. Pineal gland (Anat.), a glandlike body in the roof of the third ventricle of ...