classification

noun

• the action or process of classifying something:the classification of disease according to symptoms
• Biology the arrangement of animals and plants in taxonomic groups according to their observed similarities (including at least kingdom and phylum in animals, division in plants, and class, order, family, genus, and species):the classification of the platypus was one of the critical issues of the 1830s diagnostic features in reptilian classification
• [count noun] a category into which something is put: new classifications for drivers of commercial vehicles