the act or fact of subdividing.

a product of subdividing, as a section of a department.

a portion of land divided into lots for real-estate development.

Botany, Mycology . a category of related classes within a division or phylum.

noun

whole

noun

class , community , development , group , lower group , minor group , subclass , subsidiary , tract , member , part , piece , portion , section , segment , division , offshoot , branch , department , partition , sector