perisarcn.

Brit.

/ˈpɛrᵻsɑːk/, U.S.

/ˈpɛrəˌsɑrk/

Origin: A borrowing from Greek, combined with an English element. Etymons: peri- prefix, Greek σαρκ-, σάρξ.

Etymology: < peri- prefix + ancient Greek σαρκ-, σάρξ flesh (see sarco- comb. form). Compare ancient Greek περίσαρκος surrounded by flesh.

Zoology.

An enclosing horny or chitinous layer secreted by many colonial hydroids.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > member of > zooid > horny case of coenosarc

perisarc1870

1870 Nature 13 Oct. 482/1 A constriction takes place in..the part still covered by the chitinous perisarc.

a1933 J. A. Thomson Biol. for Everyman (1934) I. v. 87 As such a colony grows, often in tree-like fashion, it has to be supported by a non-living external skeleton (the perisarc).

1968 J. Bouillon in M. Florkin & B. T. Scheer Chem. Zool. II. ii. i. 105 Several species of Athecata, several hydranths of Thecata, and many of their planula larvae are provided with gland cells but secrete no perisarc.

2001 Biol. Bull. 201 417/1 The colonies of thecate hydroids are covered with a chitinous tubelike outer skeleton, the perisarc.

Derivatives

periˈsarcal adj. relating to or consisting of a perisarc.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [adjective] > of class Hydrozoa > of colonial hydrozoan > relating to case investing coenosarc

perisarcal1870

perisarcous1905

1870 Nature 13 Oct. 482/1 The constriction..cuts off a piece which slips entirely out of the perisarcal tube.

1955 Ecology 36 516/1 Small globular sporosacs on short pedicels arise near the base of hydranths. They have a perisarcal investment.

1995 P. F. S. Cornelius et al. in P. J. Hayward & J. S. Ryland Handbk. Marinme Fauna N.W. Europe iv. 71/1 In the suborder Thecata the hydranths can, in most families, contract within a robust protective perisarcal cup, the hydrotheca.

periˈsarcous adj. rare = perisarcal adj.Apparently only attested in dictionaries or glossaries.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [adjective] > of class Hydrozoa > of colonial hydrozoan > relating to case investing coenosarc

perisarcal1870

perisarcous1905

1905 N.E.D. at Perisarc Perisarcous.

This entry has been updated (OED Third Edition, December 2005; most recently modified version published online June 2022).

单词	perisarc
释义	perisarcn. Brit. /ˈpɛrᵻsɑːk/, U.S. /ˈpɛrəˌsɑrk/ Origin: A borrowing from Greek, combined with an English element. Etymons: peri- prefix, Greek σαρκ-, σάρξ. Etymology: < peri- prefix + ancient Greek σαρκ-, σάρξ flesh (see sarco- comb. form). Compare ancient Greek περίσαρκος surrounded by flesh. Zoology. An enclosing horny or chitinous layer secreted by many colonial hydroids. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > member of > zooid > horny case of coenosarc perisarc1870 1870 Nature 13 Oct. 482/1 A constriction takes place in..the part still covered by the chitinous perisarc. a1933 J. A. Thomson Biol. for Everyman (1934) I. v. 87 As such a colony grows, often in tree-like fashion, it has to be supported by a non-living external skeleton (the perisarc). 1968 J. Bouillon in M. Florkin & B. T. Scheer Chem. Zool. II. ii. i. 105 Several species of Athecata, several hydranths of Thecata, and many of their planula larvae are provided with gland cells but secrete no perisarc. 2001 Biol. Bull. 201 417/1 The colonies of thecate hydroids are covered with a chitinous tubelike outer skeleton, the perisarc. Derivatives periˈsarcal adj. relating to or consisting of a perisarc. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [adjective] > of class Hydrozoa > of colonial hydrozoan > relating to case investing coenosarc perisarcal1870 perisarcous1905 1870 Nature 13 Oct. 482/1 The constriction..cuts off a piece which slips entirely out of the perisarcal tube. 1955 Ecology 36 516/1 Small globular sporosacs on short pedicels arise near the base of hydranths. They have a perisarcal investment. 1995 P. F. S. Cornelius et al. in P. J. Hayward & J. S. Ryland Handbk. Marinme Fauna N.W. Europe iv. 71/1 In the suborder Thecata the hydranths can, in most families, contract within a robust protective perisarcal cup, the hydrotheca. periˈsarcous adj. rare = perisarcal adj.Apparently only attested in dictionaries or glossaries. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [adjective] > of class Hydrozoa > of colonial hydrozoan > relating to case investing coenosarc perisarcal1870 perisarcous1905 1905 N.E.D. at Perisarc Perisarcous. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online June 2022). < n.1870
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