Definition of pentameral in English:


Line breaks: pent|amer¦al
Pronunciation: /pɛnˈtamərəl


(Of symmetry) fivefold, as typical of many echinoderms. Compare with pentamerous.
More example sentences
  • The echinoderm body plan has pentameral symmetry, a water vascular system and a ring-shaped nervous system.
  • The most distinctive thing about echinoderm appearance is their pentameral - that is, a five fold - radial symmetry.
  • The distinctive pentameral symmetry of this specimen has no close similarity to figured articular facets of fossil and recent hyocrinids.



More example sentences
  • Pentamerally symmetric echinoderms are a bilaterian metazoan phylum whose members exhibit secondarily derived radial symmetry.
  • Some forms, such as the starfish, are pentamerally symmetrical, with five equal sides.


More example sentences
  • The other viewpoint is that the number of rays is intrinsically fixed at five, and therefore it is the deviations from pentamery that need explanation wherever they occur.

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