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OVUM
| Pronunciation (US): |  | (GB): | |
Irregular inflected form: ova
I. (noun)
Sense 1
Meaning:
The female reproductive cell; the female gamete
Synonyms:
egg cell; ovum
Classified under:
Hypernyms ("ovum" is a kind of...):
gamete (a mature sexual reproductive cell having a single set of unpaired chromosomes)
Hyponyms (each of the following is a kind of "ovum"):
egg (animal reproductive body consisting of an ovum or embryo together with nutritive and protective envelopes; especially the thin-shelled reproductive body laid by e.g. female birds)
ootid (mature ovum after penetration by sperm but before the formation of a zygote)
ovule (a small or immature ovum)
Holonyms ("ovum" is a part of...):
female reproductive system (the reproductive system of females)
Derivation:
ovulate (produce and discharge eggs)
Context examples:
Two long muscular tubes that transport ova from the ovaries to the uterus.
(Murine Fallopian Tube, NLM, Medical Subject Headings)
A male who contributes to the genetic makeup of his offspring through the fertilization of an ovum by his sperm.
(Biological Father, NCI Thesaurus)
Derived from the fertilization of an apparently normal ovum by two sperm.
(Partial Hydatidiform Mole, NLM, Medical Subject Headings)
Painful sensation in one side of the abdomen between menstrual cycles, around the time of the discharge of the ovum from the ovarian follicle.
(Ovulation Pain, NCI Thesaurus)
Either of the two offspring from separately fertilized ova during the same pregnancy.
(Fraternal Twin, NCI Thesaurus)
The undifferentiated cells formed by cleavage of the fertilized ovum.
(Blastomere, NLM, Medical Subject Headings)
A female who contributes to the genetic makeup of her offspring from the fertilization of her ovum.
(Biological Mother, NCI Thesaurus)
Norgestrel suppresses the secretion of luteinizing and follicle-stimulating hormones (LH and FSH), thickens cervical mucus, and slows the transit of ova through the fallopian tubes.
(Norgestrel, NCI Thesaurus)
Derived from the fertilization of an anuclear ovum by one or sometimes two haploid sperm.
(Complete Hydatidiform Mole, NLM, Medical Subject Headings)
The failure of the chromosomes to disjoin and move to opposite poles, may affect as many as 25% of all ova and 2% of all sperm.
(Meiotic Nondisjunction, NCI Thesaurus)
