hypocentrum
noun
hy·​po·​centrum
| \ "+\
plural hypocentra
Definition of hypocentrum
: a ventral part of the body of a vertebra that is usually wedge-shaped or horseshoe-shaped, consists of the fused lower arcualia of the anterior of the two arches from which each vertebra is formed, and is characteristic of some fishes, stegocephalians, and primitive reptiles
— called also intercentrum
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