- Enter a word for the dictionary definition.
From The Collaborative International Dictionary of English v.0.48:
Taxonomy \Tax*on"o*my\ (t[a^]ks*[o^]n"[-o]*m[y^]), n. [Gr. ta`xis an arrangement, order + no`mos a law.] 1. 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. [1913 Webster +PJC] 2. 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 ontology usually contains a taxonomy as one of the important principles of organization. [1913 Webster +PJC]