A primitive embryonic cell of mesodermal origin that produces cells giving rise to vascular endothelium, reticuloendothelial elements, and blood-forming cells.
- hyperbolic function,
- hyperbolic geometry,
- hyperbolic paraboloid,
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.