• The classification and naming of organisms in an ordered system that is intended to indicate natural relationships, especially evolutionary relationships.
  • The science, laws, or principles of classification.
  • An ordered arrangement of groups or categories.
  • The laws and principles of taxology, or their application to the classifying of objects of natural history; that department of science which treats of classification; the practice of classifying according to certain principles.
  • That division of the natural sciences which treats of the classification of animals and plants, primarily by consideration of their natural relationships with respect to their structure or genetic origin; the laws or principles of classification; systematics.
  • A systematic arrangement of objects or concepts showing the relations between them, especially one including a hierarchical arrangement of types in which categories of objects are classified as subtypes of more abstract categories, starting from one or a small number of top categories, and descending to more specific types through an arbitrary number of levels. An <er>ontology</er> usually contains a <ex>taxonomy</ex> as one of the important principles of organization.
  • The science or the technique used to make a <xref>classification</xref>.
  • A <xref>classification</xref>; especially, a classification in a <xref>hierarchical</xref> <xref>system</xref>.
  • The science of finding, describing, classifying and naming <xref>organisms</xref>.
  • (biology) study of the general principles of scientific classification
  • practice of classifying plants and animals according to their presumed natural relationships
  • a classification of organisms into groups based on similarities of structure or origin etc
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