deciduous(redirected from deciduousness)
Also found in: Dictionary, Thesaurus, Medical, Legal.
1. Botany (of trees and shrubs) shedding all leaves annually at the end of the growing season and then having a dormant period without leaves
2. Zoology (of antlers, wings, teeth, etc.) being shed at the end of a period of growth
Falling off or being shed at the end of the growing period or season.
Descriptive of trees or shrubs, usually of temperate climates, that shed their leaves annually; characteristic of most hardwoods and a few softwoods.