pseudocoelomateadj.n.

Brit.

/ˌs(j)uːdəʊˈsiːlə(ʊ)meɪt/, U.S.

/ˌsudoʊˈsiləˌmeɪt/

Origin: Formed within English, by compounding; modelled on a Latin lexical item. Etymons: pseudo- comb. form, cœlomate n.

Etymology: < pseudo- comb. form + cœlomate n., after scientific Latin Pseudocoelomata, subphylum or group name (W. Schimkewitsch 1891, in Biol. Centralblatt 11 293) and (in later use) pseudocoelom n.

Zoology.

A. adj.

Having, or of the nature of, a pseudocoelom; belonging to, characteristic of, or designating invertebrates of the group Pseudocoelomata.

ΚΠ

1940 L. H. Hyman Invertebrates I. ii. 35 Among the Bilateria, three grades of structure are recognized, following Schimkevitch [sic] (1891), namely, the acoelomate, pseudocoelomate, and eucoelomate types.

1985 Cambr. Encycl. Life Sci. 409/1 The rotifers are aquatic, microscopic animals, less than 2 millimetres long... They have a pseudocoelomate body cavity.

1998 L. Margulis & K. V. Schwartz Five Kingdoms (ed. 3) iii. 254/1 In 1961, when the spacious priapulid body cavity was discovered to be seemingly lined with mesentery and thus considered a coelom, some researchers moved priapulids from pseudocoelomate to protostome coelomate status.

B. n.

An organism of the group Pseudocoelomata.

ΚΠ

1961 Science 24 Mar. 879/1 In more recent publications they [sc. Priapulida] are classified usually as pseudocoelomates in the division Aschelminthes.

1980 Paleobiology 6 366/2 Clark points out what I have also come to appreciate, that the pseudocoel is an overworked concept. In many ‘pseudocoelomates’, such as gastrotrichs, it really does not exist.

1999 Nature 24 June 774/1 Brachiopods were often associated with the other ‘pseudocoelomates’ basal to the great majority of bilaterian phyla.

This is a new entry (OED Third Edition, September 2003; most recently modified version published online March 2022).

单词	pseudocoelomate
释义	pseudocoelomateadj.n. Brit. /ˌs(j)uːdəʊˈsiːlə(ʊ)meɪt/, U.S. /ˌsudoʊˈsiləˌmeɪt/ Origin: Formed within English, by compounding; modelled on a Latin lexical item. Etymons: pseudo- comb. form, cœlomate n. Etymology: < pseudo- comb. form + cœlomate n., after scientific Latin Pseudocoelomata, subphylum or group name (W. Schimkewitsch 1891, in Biol. Centralblatt 11 293) and (in later use) pseudocoelom n. Zoology. A. adj. Having, or of the nature of, a pseudocoelom; belonging to, characteristic of, or designating invertebrates of the group Pseudocoelomata. ΚΠ 1940 L. H. Hyman Invertebrates I. ii. 35 Among the Bilateria, three grades of structure are recognized, following Schimkevitch [sic] (1891), namely, the acoelomate, pseudocoelomate, and eucoelomate types. 1985 Cambr. Encycl. Life Sci. 409/1 The rotifers are aquatic, microscopic animals, less than 2 millimetres long... They have a pseudocoelomate body cavity. 1998 L. Margulis & K. V. Schwartz Five Kingdoms (ed. 3) iii. 254/1 In 1961, when the spacious priapulid body cavity was discovered to be seemingly lined with mesentery and thus considered a coelom, some researchers moved priapulids from pseudocoelomate to protostome coelomate status. B. n. An organism of the group Pseudocoelomata. ΚΠ 1961 Science 24 Mar. 879/1 In more recent publications they [sc. Priapulida] are classified usually as pseudocoelomates in the division Aschelminthes. 1980 Paleobiology 6 366/2 Clark points out what I have also come to appreciate, that the pseudocoel is an overworked concept. In many ‘pseudocoelomates’, such as gastrotrichs, it really does not exist. 1999 Nature 24 June 774/1 Brachiopods were often associated with the other ‘pseudocoelomates’ basal to the great majority of bilaterian phyla. This is a new entry (OED Third Edition, September 2003; most recently modified version published online March 2022). < adj.n.1940
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