Definition of perisomatic in US English:

perisomatic

adjective

Zoology
rare
  • Of or relating to the body wall of an echinoderm.

adjective

Histology
  • Located or occurring around or near the cell body (soma) of a neuron.

Origin

Late 19th century; earliest use found in Thomas Huxley (1825–1895), biologist and science educationist. From perisome + -atic, after somatic<br>1960s. From peri- + somatic.

Pronunciation

perisomatic

/ˌpɛrɪsəˈmatɪk/