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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 the vertebrate brain; -- called also pineal body, epiphysis, conarium. In some animals it is connected with a rudimentary eye, the so-called pineal eye, and in other animals it is suppos…

cute cerebral affection attended by fever. -- Brain sand, calcareous matter found in the pineal gland.

The pineal gland.

The cerebral epiphysis, or pineal gland. See Pineal gland, under Pineal.

An organ or part which resembles a secreting, or true, gland, as the ductless, lymphatic, pineal, and pituitary glands, the functions of which are very imperfectly known.

g different parts of the brain; as, the peduncles of the cerebellum; the peduncles of the pineal gland.

The segment of the brain next in front of the midbrain, including the thalami, pineal gland, and pituitary body; the diencephalon; the interbrain.