- radial skeleton
-
(PORIFERA)Structural elements diverging from a central point toward the surface.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
radial skeleton
Look at other dictionaries:
skeleton — skeletonless, adj. skeletonlike, adj. /skel i tn/, n. 1. Anat., Zool. the bones of a human or an animal considered as a whole, together forming the framework of the body. 2. any of various structures forming a rigid framework in an invertebrate.… … Universalium
radial — 1) a bony or cartilaginous support for a fin ray or spine. Usually three the proximal, middle and distal radials. If the proximal radial is notably larger it is spoken of as a basal. Teleosts have only one row of radials between the fin rays and… … Dictionary of ichthyology
somactid — radial (a bony or cartilaginous support for a fin ray or spine. Usually three the proximal, middle and distal radials. If the proximal radial is notably larger it is spoken of as a basal. Teleosts have only one row of radials between the fin rays … Dictionary of ichthyology
echinoderm — /i kuy neuh derrm , ek euh neuh /, n. any marine animal of the invertebrate phylum Echinodermata, having a radiating arrangement of parts and a body wall stiffened by calcareous pieces that may protrude as spines and including the starfishes, sea … Universalium
cnidarian — /nuy dair ee euhn/, n. 1. any invertebrate animal, as a hydra, jellyfish, sea anemone, or coral, considered as belonging to the phylum Cnidaria, characterized by the specialized stinging structures in the tentacles surrounding the mouth; a… … Universalium
animal — animalic /an euh mal ik/, animalian /an euh may lee euhn, mayl yeuhn/, adj. /an euh meuhl/, n. 1. any member of the kingdom Animalia, comprising multicellular organisms that have a well defined shape and usually limited growth, can move… … Universalium
fish — fishless, adj. /fish/, n., pl. (esp. collectively) fish, (esp. referring to two or more kinds or species) fishes, v. n. 1. any of various cold blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with … Universalium
Fish — /fish/, n. Hamilton, 1808 93, U.S. statesman: secretary of state 1869 77. * * * I Any of more than 24,000 species of cold blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes… … Universalium
Bone — This article is about the skeletal organ. For other uses, see Bone (disambiguation) and Bones (disambiguation). For the tissue, see Osseous tissue. Drawing of a human femur Bones are rigid organs that constitute part of the endoskeleton of… … Wikipedia
Echinoderm — Temporal range: Cambrian–recent … Wikipedia
