arcocentrum
the cartilaginous arch and its base in the vertebrae of Elasmobranchii. Also used in Pycnodont Actinopterygii (Poyato-Ariza and Wenz, 2002)

Dictionary of ichthyology. 2009.

Look at other dictionaries:

  • arcocentrum — ar·co·cen·trum …   English syllables

  • arcocentrum — |ärkō|sen.trəm noun Etymology: New Latin, from arco (from Latin arcus bow) + centrum : a centrum of a vertebra formed of basal parts or segments of the neural and hemal arches more or less modified and fused together compare chordacentrum …   Useful english dictionary

  • tectospondylous — a type of vertebral centra (and arches) with several concentric ossifications instead of just one, extending to the chordacentrum, arcocentrum and autocentrum. Found in skates and rays …   Dictionary of ichthyology

  • vertebra tectospondyla — (plural vertebrae tectospondylae)) tectospondylous vertebra (vertebral centra (and arches) with several concentric ossifications instead of just one, extending to the chordacentrum, arcocentrum and autocentrum. Found in skates and rays) …   Dictionary of ichthyology

  • chordacentrum — |kȯrdə+ noun Etymology: New Latin, from chorda (anat.) + centrum : a centrum of a vertebra formed by segmentation of the cartilaginous or calcified sheath of the notochord (as in elasmobranchs) compare arcocentrum …   Useful english dictionary

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