polycladadj.n.

Brit.

/ˈpɒlɪklad/, U.S.

/ˈpɑliˌklæd/

Origin: A borrowing from Latin. Etymon: Latin Polycladidea.

Etymology: < polyclad- (in scientific Latin Polycladidea (A. Lang 1884, in Fauna u. Flora des Golfes von Neapel 11 1) or Polycladida , order (or suborder) names; < poly- poly- comb. form + ancient Greek κλάδος branch (see clade n.²) + scientific Latin -idea and -ida , respectively: see -id suffix³). Compare Hellenistic Greek πολύκλαδος having many branches. Compare triclad adj.

Zoology.

A. adj.

Of or relating to the order Polycladida of turbellarian flatworms, having a main intestine with more than four branches. Cf. triclad adj. and n.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Platyhelminthes > [adjective] > of or belonging to class Turbellaria > belonging to division Polycladida

polyclad1888

1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 578 A more or less apparent radial symmetry is observable in some Polyclad Turbellaria.

1941 J. Steinbeck & E. F. Ricketts Sea of Cortez xi. 111 Beautiful purple polyclad worms crawled over lawns of purple tunicates.

1995 C. Nielsen Animal Evol. xxv. 211 The..similarities between one of the typical pilidium larvae and the Götte's larva of a polyclad turbellarian may indicate that this is close to the original type.

B. n.

A polyclad flatworm. Cf. triclad n.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Platyhelminthes > [noun] > class Turbellaria > member of division Polycladida

polyclad1888

1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 672 Two curious Polyclads have..been described with certain Ctenophore-like characters.

1968 B. T. Scheer & E. R. Jones in M. Florkin & B. T. Scheer Chem. Zool. II. iii. i. 294 Nearly all of the polyclads are marine.

1995 R. Gibson & E. W. Knight-Jones in P. J. Hayward & J. S. Ryland Handbk. Marine Fauna N.W. Europe v. 136/1 The bold pattern of Prostheceraeus..is readily seen.., with some other polyclads.., by turning over shore rocks at low water.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	polyclad
释义	polycladadj.n. Brit. /ˈpɒlɪklad/, U.S. /ˈpɑliˌklæd/ Origin: A borrowing from Latin. Etymon: Latin Polycladidea. Etymology: < polyclad- (in scientific Latin Polycladidea (A. Lang 1884, in Fauna u. Flora des Golfes von Neapel 11 1) or Polycladida , order (or suborder) names; < poly- poly- comb. form + ancient Greek κλάδος branch (see clade n.²) + scientific Latin -idea and -ida , respectively: see -id suffix³). Compare Hellenistic Greek πολύκλαδος having many branches. Compare triclad adj. Zoology. A. adj. Of or relating to the order Polycladida of turbellarian flatworms, having a main intestine with more than four branches. Cf. triclad adj. and n. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Platyhelminthes > [adjective] > of or belonging to class Turbellaria > belonging to division Polycladida polyclad1888 1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 578 A more or less apparent radial symmetry is observable in some Polyclad Turbellaria. 1941 J. Steinbeck & E. F. Ricketts Sea of Cortez xi. 111 Beautiful purple polyclad worms crawled over lawns of purple tunicates. 1995 C. Nielsen Animal Evol. xxv. 211 The..similarities between one of the typical pilidium larvae and the Götte's larva of a polyclad turbellarian may indicate that this is close to the original type. B. n. A polyclad flatworm. Cf. triclad n. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Platyhelminthes > [noun] > class Turbellaria > member of division Polycladida polyclad1888 1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 672 Two curious Polyclads have..been described with certain Ctenophore-like characters. 1968 B. T. Scheer & E. R. Jones in M. Florkin & B. T. Scheer Chem. Zool. II. iii. i. 294 Nearly all of the polyclads are marine. 1995 R. Gibson & E. W. Knight-Jones in P. J. Hayward & J. S. Ryland Handbk. Marine Fauna N.W. Europe v. 136/1 The bold pattern of Prostheceraeus..is readily seen.., with some other polyclads.., by turning over shore rocks at low water. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < adj.n.1888
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