The action or process of classifying something according to shared qualities or characteristics. noun
The classification of plants and animals is a fundamental aspect of biology.
Library books are arranged by a system of classification to make them easier to find.
A category into which something is put. noun
The new species was placed in a classification that had not been used before.
Each item in the store has a classification that determines its price.
The arrangement of animals and plants in taxonomic groups according to their observed similarities. noun
The scientist spent years working on the classification of marine organisms.
Modern classification of living organisms is based on genetic analysis.