HEMAL ARCH


Meaning of HEMAL ARCH in English

noun

: a bony or cartilaginous arch extending ventrally from the spinal column:

a. : the arch formed by a vertebra and an associated pair of ribs

b.

(1) : an arch on the ventral surface of each caudal vertebra of a lower vertebrate (as a fish or reptile) usually considered to consist of the extended and ventrally fused parapophyses of the vertebra

(2) : such an arch together with its dependent hemal spine forming a V-shaped or Y-shaped ventral prolongation of a caudal vertebra — called also chevron bone

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.