† pentameraladj.¹

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin Pentamerus , -al suffix¹.

Etymology: < scientific Latin Pentamerus genus name (J. Sowerby 1813; < Hellenistic Greek πενταμερής : see pentamerous adj.) + -al suffix¹.

Geology. Obsolete. rare.

Of rock: containing fossil brachiopods of the genus Pentamerus.

ΚΠ

1855 J. Phillips Man. Geol. 106 (table) Pentameral limestone.

This is a new entry (OED Third Edition, September 2005; most recently modified version published online March 2020).

pentameraladj.²

Brit.

/pɛnˈtam(ə)rəl/, U.S.

/pɛnˈtæm(ə)rəl/

Origin: A variant or alteration of another lexical item. Etymon: pentamerous adj.

Etymology: Alteration of pentamerous adj., with suffix substitution (see -al suffix¹). Compare earlier pentameral adj.¹

Botany and Zoology.

Consisting of or having five parts or segments; pentamerous.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [adjective] > belonging to or resembling echinoderms > of parts of > having five rays

pentamerous1870

pentameral1872

1872 Philos. Trans. (Royal Soc.) 162 37 Stylocænia has species with a pentameral [septal] type in the Eocene and Lower Cretaceous deposits.

1899 Nature 14 Sept. 460/1 Theories of stalked-ancestry, pentameral symmetry, and the like.

1983 E. C. Minkoff Evolutionary Biol. xxvi. 483/2 The familiar starfish is an example of pentameral symmetry.

1990 C. Pellant Rocks, Minerals & Fossils 145/1 Encrinus has a rather squat calyx but still shows good pentameral symmetry.

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

单词	pentameral
释义	† pentameraladj.¹ Origin: A borrowing from Latin, combined with an English element. Etymons: Latin Pentamerus , -al suffix¹. Etymology: < scientific Latin Pentamerus genus name (J. Sowerby 1813; < Hellenistic Greek πενταμερής : see pentamerous adj.) + -al suffix¹. Geology. Obsolete. rare. Of rock: containing fossil brachiopods of the genus Pentamerus. ΚΠ 1855 J. Phillips Man. Geol. 106 (table) Pentameral limestone. This is a new entry (OED Third Edition, September 2005; most recently modified version published online March 2020). pentameraladj.² Brit. /pɛnˈtam(ə)rəl/, U.S. /pɛnˈtæm(ə)rəl/ Origin: A variant or alteration of another lexical item. Etymon: pentamerous adj. Etymology: Alteration of pentamerous adj., with suffix substitution (see -al suffix¹). Compare earlier pentameral adj.¹ Botany and Zoology. Consisting of or having five parts or segments; pentamerous. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [adjective] > belonging to or resembling echinoderms > of parts of > having five rays pentamerous1870 pentameral1872 1872 Philos. Trans. (Royal Soc.) 162 37 Stylocænia has species with a pentameral [septal] type in the Eocene and Lower Cretaceous deposits. 1899 Nature 14 Sept. 460/1 Theories of stalked-ancestry, pentameral symmetry, and the like. 1983 E. C. Minkoff Evolutionary Biol. xxvi. 483/2 The familiar starfish is an example of pentameral symmetry. 1990 C. Pellant Rocks, Minerals & Fossils 145/1 Encrinus has a rather squat calyx but still shows good pentameral symmetry. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < adj.¹1855adj.²1872
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† pentameraladj.1

pentameraladj.2

† pentameraladj.¹

pentameraladj.²