blastocyst

n. the mammalian embryo at a very early stage of development. It consists of a tiny hollow sphere containing an inner cell mass, enclosed in a thin layer of cells that help implant the blastocyst in the uterine lining. Blastocyst formation in humans generally occurs on the 5th or 6th day following fertilization.

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Psychology term of the day

December 22nd 2024

cardio- (cardi-)

Sorry, "cardio-cardi" is not in the Dictionary of Psychology. Please report to APA if you believe this is an error.