pre-embryonicadj.

Brit.

/ˌpriːɛmbrɪˈɒnɪk/, U.S.

/ˌpriˌɛmbriˈɑnɪk/

Origin: Formed within English, by derivation. Etymons: pre- prefix, embryonic adj.

Etymology: < pre- prefix + embryonic adj. In spec. use after preembryo n.

Biology.

Preceding the existence or development of the embryo; spec. of or relating to a preembryo.

ΚΠ

1875 Contemp. Rev. 27 81 The newly fertilized ovum—that is, in the earliest pre-embryonic stage.

1923 Amer. Naturalist 57 510 It is even less hard to believe..that the teratogenic conditions may exist in the germinal or preembryonic state, before fertilization.

1958 Chron.-Telegram (Elyria, Ohio) 8 Jan. 28/2 Tooth decay prevention starts in pre-embryonic time. Evidently the concentrated calcium intake of pregnant women is not controlling tooth decay.

1987 New Scientist 10 Dec. 43/1 Such genetic testing could take place in the ‘pre-embryonic’ period, which spans the first two weeks after the human egg is fertilised.

2004 Plant Physiol. & Biochem. 42 470/1 Mutants were screened in collections of insertion (T-DNA) or ethyl methane-sulfonate mutagenized populations for impaired pre-embryonic development.

This is a new entry (OED Third Edition, March 2007; most recently modified version published online March 2022).

单词	pre-embryonic
释义	pre-embryonicadj. Brit. /ˌpriːɛmbrɪˈɒnɪk/, U.S. /ˌpriˌɛmbriˈɑnɪk/ Origin: Formed within English, by derivation. Etymons: pre- prefix, embryonic adj. Etymology: < pre- prefix + embryonic adj. In spec. use after preembryo n. Biology. Preceding the existence or development of the embryo; spec. of or relating to a preembryo. ΚΠ 1875 Contemp. Rev. 27 81 The newly fertilized ovum—that is, in the earliest pre-embryonic stage. 1923 Amer. Naturalist 57 510 It is even less hard to believe..that the teratogenic conditions may exist in the germinal or preembryonic state, before fertilization. 1958 Chron.-Telegram (Elyria, Ohio) 8 Jan. 28/2 Tooth decay prevention starts in pre-embryonic time. Evidently the concentrated calcium intake of pregnant women is not controlling tooth decay. 1987 New Scientist 10 Dec. 43/1 Such genetic testing could take place in the ‘pre-embryonic’ period, which spans the first two weeks after the human egg is fertilised. 2004 Plant Physiol. & Biochem. 42 470/1 Mutants were screened in collections of insertion (T-DNA) or ethyl methane-sulfonate mutagenized populations for impaired pre-embryonic development. This is a new entry (OED Third Edition, March 2007; most recently modified version published online March 2022). < adj.1875
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