monospermyn.

Brit.

/ˈmɒnə(ʊ)ˌspəːmi/, U.S.

/ˈmɑnəˌspərmi/

Origin: Formed within English, by compounding. Etymons: mono- comb. form, polyspermy n.

Etymology: < mono- comb. form + -spermy (in polyspermy n.), after monospermic adj.

1. Biology. Penetration or fertilization of an ovum by a single sperm.

ΚΠ

1900 E. B. Wilson Cell iv. 200 In others the spermatozoön may penetrate the membrane at any point (mammals), yet monospermy is the rule.

1979 Developmental Biol. 70 342/2 Monospermy or polyspermy was determined by observation of a normal or abnormal first cleavage.

2000 Internat. Jrnl. Androl. 23 13 The effects of exogenous HA [= hyaluronan] on sperm penetration and monospermy were also compared among semen batches.

2. Botany. The condition of being monospermous.

ΚΠ

1904 Bot. Gaz. 37 294 The explanation of the monospermy of the Anemophilae and the polyspermy of the Entomophilae is obvious when one considers the difference in the conditions of pollination.

1950 Evolution 4 104/1 Monospermy constitutes an ultimate stage in a certain trend in fruit evolution.

1969 Jrnl. Ecol. 57 6 p The calyces of oriental Trifolium species illustrate monospermy.

This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022).

单词	monospermy
释义	monospermyn. Brit. /ˈmɒnə(ʊ)ˌspəːmi/, U.S. /ˈmɑnəˌspərmi/ Origin: Formed within English, by compounding. Etymons: mono- comb. form, polyspermy n. Etymology: < mono- comb. form + -spermy (in polyspermy n.), after monospermic adj. 1. Biology. Penetration or fertilization of an ovum by a single sperm. ΚΠ 1900 E. B. Wilson Cell iv. 200 In others the spermatozoön may penetrate the membrane at any point (mammals), yet monospermy is the rule. 1979 Developmental Biol. 70 342/2 Monospermy or polyspermy was determined by observation of a normal or abnormal first cleavage. 2000 Internat. Jrnl. Androl. 23 13 The effects of exogenous HA [= hyaluronan] on sperm penetration and monospermy were also compared among semen batches. 2. Botany. The condition of being monospermous. ΚΠ 1904 Bot. Gaz. 37 294 The explanation of the monospermy of the Anemophilae and the polyspermy of the Entomophilae is obvious when one considers the difference in the conditions of pollination. 1950 Evolution 4 104/1 Monospermy constitutes an ultimate stage in a certain trend in fruit evolution. 1969 Jrnl. Ecol. 57 6 p The calyces of oriental Trifolium species illustrate monospermy. This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022). < n.1900
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