from The Century Dictionary.
- noun In zoology, division of a given group of animals into more than two other groups or series: correlated with dichotomy.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
Sorry, no etymologies found.
Polytomy: A polytomy (also called a polychotomy) is a section of a phylogeny in which the evolutionary relationships can not be fully resolved to dichotomies.