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pyramid

n. a bulge on the front of the medulla oblongata where fibers of motor neurons from higher centers cross from one side of the brain to the opposite side of the spinal cord. See also pyramidal tract.

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Psychology term of the day

May 9th 2024

contraception

contraception

n. any method intended to prevent conception, that is, the natural fertilization of the female ovum by the male spermatozoa. See birth control. —contraceptive n., adj.