Dictionary

suprachiasmatic nucleus

noun su·pra·chi·as·mat·ic nucleus \ˌsü-prə-ˌkī-əz-ˈma-tik-\

Definition of SUPRACHIASMATIC NUCLEUS

:  either of a pair of neuron clusters in the hypothalamus situated directly above the optic chiasma that receive photic input from the retina via the optic nerve and that regulate the body's circadian rhythms

First Known Use of SUPRACHIASMATIC NUCLEUS

1938

suprachiasmatic nucleus

noun    (Medical Dictionary)

Medical Definition of SUPRACHIASMATIC NUCLEUS

:  either of a pair of neuron clusters in the hypothalamus situated directly above the optic chiasma that receive photic input from the retina via the optic nerve and that regulate the body's circadian rhythms—abbreviation SCN

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