pertaining to or situated behind the axis of the body, especially the posterior side of the axis of a limb.
- post·ax·i·al·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use postaxial in a sentence
Each limb then has a dorsal surface, a ventral surface, an anterior or pre-axial edge, and a posterior or postaxial edge.
In the anterior limb the radius and the pollex are pre-axial, the ulna and the fifth finger are postaxial.
In the posterior limb the tibia and the hallux are pre-axial, the fibula and the fifth toe are postaxial.
Archipterygia too are found in the pectoral fins of the Ichthyotomi, but the postaxial radiale are much reduced.
The ulna or postaxial bone is somewhat expanded distally, but is not drawn out proximally into an olecranon process.
British Dictionary definitions for postaxial
situated or occurring behind the axis of the body
of or relating to the posterior part of a vertebrate limb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012