monospermicadj.

Brit.

/ˌmɒnə(ʊ)ˈspəːmɪk/, U.S.

/ˌmɑnəˈspərmɪk/

Origin: Formed within English, by derivation. Etymons: mono- comb. form, sperm n., -ic suffix.

Etymology: < mono- comb. form + sperm n. + -ic suffix. In sense 1 probably after French monospermique (1846) or scientific Latin monospermicus (see below). In sense 2 after German monosperm (O. Hertwig & R. Hertwig 1887, in Jenaische Zeitschr. 20 149). Compare earlier monosperm adj. and n., monospermal adj., monospermatous adj., monospermous adj.For scientific Latin monospermicus in sense 1, compare:1856 J. S. Henslow Dict. Bot. Terms 110 Monospermicus, Monospermus, a fruit which contains only one seed.1857 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Monospermicus, the same as Monospermus.

1. Botany. = monospermous adj. Now rare.

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > seed > plant having seed > [adjective] > of specific number or many

monospermous1687

polyspermous1687

polysperm1729

dispermous1760

tetraspermous1760

trispermous1760

one-seededa1794

monosperm1838

dispermatous1854

monospermal1857

monospermatous1857

polyspermatous1858

tetraspermal1860

tetraspermatous1860

polyspermal1882

monospermic1891

1891 New Sydenham Soc. Lexicon Monospermic, the same as Monospermatous.

1906 Philos. Trans. (Royal Soc.) B. 198 374 Monospermic deciduous cone-scales with a bifurcated lamina.

2. Biology. Of the nature of, relating to, or arising by monospermy; (of an ovum) penetrated or fertilized by only one sperm.

ΚΠ

1896 Arch. f. Entwickelungsmechanik der Organismen 2 272 A later stage in the development of a monospermic fragment is shown.

1900 E. B. Wilson Cell iv. 199 It is an interesting question how the entrance of supernumerary spermatozoa is prevented in normal monospermic fertilization.

1927 Q. Rev. Biol. 2 214 In the normally monospermic egg of Rana we can easily bring about a simultaneous penetration of several spermatozoa.

1945 Q. Rev. Biol. 20 38/1 Fertilization of frog's eggs is strictly monospermic under normal conditions.

1987 Nature 26 Feb. 763/1 Nonetheless, in the laboratory, eggs challenged by hundreds of spermatozoa are usually monospermic.

2001 Molecular Reprod. & Devel. 58 424 Replacement of caffeine with adenosine in fertilization medium improves monospermic penetration by frozen-thawed boar spermatozoa.

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

单词	monospermic
释义	monospermicadj. Brit. /ˌmɒnə(ʊ)ˈspəːmɪk/, U.S. /ˌmɑnəˈspərmɪk/ Origin: Formed within English, by derivation. Etymons: mono- comb. form, sperm n., -ic suffix. Etymology: < mono- comb. form + sperm n. + -ic suffix. In sense 1 probably after French monospermique (1846) or scientific Latin monospermicus (see below). In sense 2 after German monosperm (O. Hertwig & R. Hertwig 1887, in Jenaische Zeitschr. 20 149). Compare earlier monosperm adj. and n., monospermal adj., monospermatous adj., monospermous adj.For scientific Latin monospermicus in sense 1, compare:1856 J. S. Henslow Dict. Bot. Terms 110 Monospermicus, Monospermus, a fruit which contains only one seed.1857 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Monospermicus, the same as Monospermus. 1. Botany. = monospermous adj. Now rare. ΘΚΠ the world > plants > part of plant > reproductive part(s) > seed > plant having seed > [adjective] > of specific number or many monospermous1687 polyspermous1687 polysperm1729 dispermous1760 tetraspermous1760 trispermous1760 one-seededa1794 monosperm1838 dispermatous1854 monospermal1857 monospermatous1857 polyspermatous1858 tetraspermal1860 tetraspermatous1860 polyspermal1882 monospermic1891 1891 New Sydenham Soc. Lexicon Monospermic, the same as Monospermatous. 1906 Philos. Trans. (Royal Soc.) B. 198 374 Monospermic deciduous cone-scales with a bifurcated lamina. 2. Biology. Of the nature of, relating to, or arising by monospermy; (of an ovum) penetrated or fertilized by only one sperm. ΚΠ 1896 Arch. f. Entwickelungsmechanik der Organismen 2 272 A later stage in the development of a monospermic fragment is shown. 1900 E. B. Wilson Cell iv. 199 It is an interesting question how the entrance of supernumerary spermatozoa is prevented in normal monospermic fertilization. 1927 Q. Rev. Biol. 2 214 In the normally monospermic egg of Rana we can easily bring about a simultaneous penetration of several spermatozoa. 1945 Q. Rev. Biol. 20 38/1 Fertilization of frog's eggs is strictly monospermic under normal conditions. 1987 Nature 26 Feb. 763/1 Nonetheless, in the laboratory, eggs challenged by hundreds of spermatozoa are usually monospermic. 2001 Molecular Reprod. & Devel. 58 424 Replacement of caffeine with adenosine in fertilization medium improves monospermic penetration by frozen-thawed boar spermatozoa. This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022). < adj.1891
随便看	θ102476 θ102477 θ102478 θ102479 θ10248 θ102480 θ102481 θ102482 θ102483 θ102484 θ102485 θ102486 θ102487 θ102488 θ102489 θ10249 θ102490 θ102491 θ102492 θ102493 θ102494 θ102495 θ102496 θ102497 θ102498