protostomianadj.n.

Brit.

/ˌprəʊtə(ʊ)ˈstəʊmɪən/, U.S.

/ˌproʊdəˈstoʊmiən/

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin Protostomia , -an suffix.

Etymology: < scientific Latin Protostomia (see protostome n. and adj.) + -an suffix. With use as adjective compare slightly later protostome adj. With use as noun compare earlier protostome n. 2.

Zoology.

A. adj.

Of, relating to, or characteristic of the protostomes or the (former) group Protostomia; = protostome adj.

ΚΠ

1958 Q. Rev. Biol. 33 45/2 To the greater uniformity of fundamental plan in the Deuterostomia corresponds a much smaller diversification of species, even omitting the top protostomian groups for speciation, the Nematoda and Insecta.

1973 Nature 21 Dec. 452/2 E. B. Cutler..reviewed the occurrence of supposed protostomian and deuterostomian characters in Pogonophora.

2000 Systematic Biol. 49 543/2 Both development and morphology of the adult nervous system [in chaetognaths] are typically protostomian.

B. n.

= protostome n. 2.

ΘΚΠ

the world > animals > invertebrates > [noun] > specific groups of

Mollusca1661

Acrita1823

microzoon1859

microzoary1863

malacozoic series1877

protostome1958

acoelomate1964

protostomian1968

1968 BioScience 18 1115/1 What group gave rise to both the deuterostomians and the protostomians?

1995 C. Nielsen Animal Evol. xxxv. 284 The origin of the tube-shaped gut through fusion of the lateral blastopore lips, and the development of the ventral nerve cord along the fusion line unequivocally define the nematodes as protostomians (gastroneuralians).

2001 Molecular Biol. & Evol. 18 2151/2 Using various molecular-clock models..the divergence between protostomians and deuterostomians has been estimated to have occurred between 830 and 1,000 [million years ago].

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

单词	protostomian
释义	protostomianadj.n. Brit. /ˌprəʊtə(ʊ)ˈstəʊmɪən/, U.S. /ˌproʊdəˈstoʊmiən/ Origin: A borrowing from Latin, combined with an English element. Etymons: Latin Protostomia , -an suffix. Etymology: < scientific Latin Protostomia (see protostome n. and adj.) + -an suffix. With use as adjective compare slightly later protostome adj. With use as noun compare earlier protostome n. 2. Zoology. A. adj. Of, relating to, or characteristic of the protostomes or the (former) group Protostomia; = protostome adj. ΚΠ 1958 Q. Rev. Biol. 33 45/2 To the greater uniformity of fundamental plan in the Deuterostomia corresponds a much smaller diversification of species, even omitting the top protostomian groups for speciation, the Nematoda and Insecta. 1973 Nature 21 Dec. 452/2 E. B. Cutler..reviewed the occurrence of supposed protostomian and deuterostomian characters in Pogonophora. 2000 Systematic Biol. 49 543/2 Both development and morphology of the adult nervous system [in chaetognaths] are typically protostomian. B. n. = protostome n. 2. ΘΚΠ the world > animals > invertebrates > [noun] > specific groups of Mollusca1661 Acrita1823 microzoon1859 microzoary1863 malacozoic series1877 protostome1958 acoelomate1964 protostomian1968 1968 BioScience 18 1115/1 What group gave rise to both the deuterostomians and the protostomians? 1995 C. Nielsen Animal Evol. xxxv. 284 The origin of the tube-shaped gut through fusion of the lateral blastopore lips, and the development of the ventral nerve cord along the fusion line unequivocally define the nematodes as protostomians (gastroneuralians). 2001 Molecular Biol. & Evol. 18 2151/2 Using various molecular-clock models..the divergence between protostomians and deuterostomians has been estimated to have occurred between 830 and 1,000 [million years ago]. This is a new entry (OED Third Edition, September 2007; most recently modified version published online March 2022). < adj.n.1958
随便看	destructivenesses destructivism destructivities destructivity destructless destructor destructors destructory destructs destructuralization destructuralize destructuration destructure destuted desubstantialize desubstantiate demurely demureness demurenesses demurer demurest demurity demurmurate demurmuratory demurrable