Of, characterized by, or having three visceral cavities: skull, thorax, and abdomen.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for trisplanchnic
Historical Examples of trisplanchnic
Its chords are called the great sympathetic, the intercostal, or trisplanchnic nerves.An Introduction to Entomology: Vol. IV (of 4)