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Definition of Pinealocyte
1. Noun. A single cell within the pineal gland which is involved in melatonin secretion and circadian rhythms. ¹
¹ Source: wiktionary.com
Medical Definition of Pinealocyte
1. A cell of the pineal body with long processes ending in bulbous expansions. Pinealocytes receive a direct innervation from sympathetic neurons that form recognizable synapses. The club-shaped endings of pinealocyte processes terminate in perivascular spaces surrounding capillaries. Synonym: chief cell of corpus pineale, parenchymatous cell of corpus pineale. Origin: pineal + G. Kytos, cell (05 Mar 2000)