biosystematics

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The statistical analysis of data obtained from genetic, biochemical, and other studies to assess the taxonomic relationships of organisms or populations, especially within an evolutionary framework.

from the GNU version of the Collaborative International Dictionary of English.

• noun use of data (e. g. cytogenetic or biochemical) to assess taxonomic relations esp within an evolutionary framework.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun biology, taxonomy taxonomy based upon statistical data of the evolution of organisms

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun use of data (e.g. cytogenetic or biochemical) to assess taxonomic relations especially within an evolutionary framework