Corpus-luteum definition

lo͝otē-əm
corpora-lutea
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Frequency:
A yellow, progesterone-secreting mass of cells that forms from an ovarian follicle after the release of a mature egg.
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(anat.) A mass of yellow tissue formed in the ovary by a ruptured graafian follicle that has discharged its ovum: if the ovum is fertilized, this tissue secretes the hormone progesterone, needed to maintain pregnancy.
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A preparation containing this hormone, used in ovarian therapy; progesterone.
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A yellow, progesterone-secreting mass of cells that forms from an ovarian follicle after the release of a mature egg.
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A yellow mass of cells that forms from a mature ovarian follicle after ovulation and that secretes progesterone. If fertilization of the egg occurs, the corpus luteum persists for the first few months of pregnancy.
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(anatomy) A yellow mass of cells that forms from an ovarian follicle during the luteal phase of the menstrual cycle in mammals; it secretes steroid hormones.
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Other Word Forms

Noun

Singular:
corpus-luteum
Plural:
corpora lutea

Origin of corpus-luteum

  • New Latin corpus lūteum Latin corpus body Latin lūteum neuter of lūteus yellow

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin corpus (“body”) + lūteum (“yellow”)

    From Wiktionary