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单词 superovulation
释义

superovulationn.

Brit. /ˌsuːpərˌɒvjᵿˈleɪʃn/, /ˌsjuːpərˌɒvjᵿˈleɪʃn/, U.S. /ˌsupərˌɑvjəˈleɪʃ(ə)n/, /ˌsupərˌoʊvjəˈleɪʃ(ə)n/
Origin: Formed within English, by derivation. Etymons: super- prefix, ovulation n.
Etymology: < super- prefix + ovulation n. Compare later superovulate v.In sense 2 after French superovulation ( A. Auvard Traité pratique d'accouchements (1890) 522).
Physiology.
1. The production of a double egg within a single shell. Obsolete. rare.
ΚΠ
1872 Med. & Surg. Reporter 27 Apr. 377/2 We found the white portion as in other eggs, and a perfect egg, of unusual size, occupying the place of the yolk. The week before she laid a similar egg... Is this not a perfect case of super-ovulation?
2. Multiple pregnancy resulting from fertilization of eggs ovulated either simultaneously or within a very short period of time. Obsolete. rare.
ΚΠ
1892 C. M. Beebe tr. A. Auvard Syst. Obstetr. 349 Superfecundation is subdivided into superovulation, superembryonnement, superfœtation.
3. The production of an unusually large number of eggs at one ovulation (typically in response to hormonal manipulation, esp. with gonadotropins).
ΘΚΠ
the world > life > biology > biological processes > procreation or reproduction > reproductive cycle > [noun] > ovulation
ovulation1848
ovulating1891
superovulation1927
1927 Amer. Jrnl. Anat. 40 213 Superovulation, or the liberation of an unusual number of ova invariably occurs.
1945 H. Burrows Biol. Actions Sex Hormones 21 Possibly the superovulation which occurs under the influence of excessive supplies of gonadotrophin may be due to a ripening of these ancillary follicles.
1973 N. Freedman Joshua 40 During the course of the month ovulation timing was regulated and superovulation produced by a dosage of 50 mg clomiphene citrate.
2003 Wired Jan. 123/2 Because IVF frequently fails, clinicians use drugs to induce super-ovulation, producing 10 to 15 eggs at once.
This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).
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n.1872
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