Acentrous

adj

adj ·Rare ·Advanced level

Definitions

Adjective

1
lacking vertebral centra
"2001, "Axial Skeleton", David Cannatella, https://web.archive.org/web/20051222184337/http://www.lifesci.utexas.edu/courses/bio478L/LecturesPDF/bodyskeleton.pdf "Some bony fishes (Teleostei, Amia, Lepisosteus, and Brachiopterygii) have well-ossified centra and neural and hemal arches. Others (Dipnoi, Latimeria, and Chondrostei) lack centra (acentrous), and the notochord is unconstricted, and the bony neural and hemal arches simply rest on it.""

Example

"2001, "Axial Skeleton", David Cannatella, https://web.archive.org/web/20051222184337/http://www.lifesci.utexas.edu/courses/bio478L/LecturesPDF/bodyskeleton.pdf "Some bony fishes (Teleostei, Amia, Lepisosteus, and Brachiopterygii) have well-ossified centra and neural and hemal arches. Others (Dipnoi, Latimeria, and Chondrostei) lack centra (acentrous), and the notochord is unconstricted, and the bony neural and hemal arches simply rest on it.""

Etymology

From a- + centre + -ous.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.