- the act of circumscribe, circumscribing or the quality of being circumscribed
- anything that circumscribes or a circumscribed area
- (taxonomy) the definition of what does and does not belong to a given taxon, from a particular taxonomic viewpoint or taxonomic system.
- The circumscription in the APG system of the family Malvaceae includes the former families Bombacaceae, Sterculiaceae and Tiliaceae.
Etymology: circum, "around"; scribere "to write"
- Italian: circoscrizione
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