Pineal-apparatus
noun
1.
a median outgrowth of the roof of the diencephalon in vertebrates that in some develops into the pineal eye and in others into the pineal gland.
2.
.
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noun 1. an eyelike structure that develops from the pineal apparatus in certain cold-blooded vertebrates. noun 1. an outgrowth of the pineal gland that forms an eyelike structure on the top of the head in certain cold-blooded vertebrates pineal eye (pĭn’ē-əl, pī’nē-əl) A sensory structure capable of light reception, appearing as a spot on the […]
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pinealocyte pin·e·a·lo·cyte (pĭn’ē-ə-lō-sīt’, pī’nē-, pĭ-nē’-, pī-nē’-) n. A cell of the pineal body having long processes ending in bulbous expansions.
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pinealoma pin·e·a·lo·ma (pĭn’ē-ə-lō’mə, pī’nē-) n. pin·e·a·lo·mas or pin·e·a·lo·ma·ta (-mə-tə) A neoplasm derived from the pineal body and characterized by large, round, or polygonal cells with large nuclei and small cells that resemble lymphocytes.