- The definition of deciduous is something that sheds after a period of time, such as a tree or a shrub that sheds its leaves annually or the milk teeth of a mammal that are shed as the mammal grows.
A tree that loses its leaves annually is an example of a deciduous tree.
This deciduous tree has lost its leaves.
deciduous definition by Webster's New World
- falling off or out at a certain season or stage of growth, as some leaves, antlers, insect wings, or milk teeth
- shedding leaves annually
- short-lived; temporary
Origin: Classical Latin deciduus ; from decidere, to fall off ; from de-, off, down plush cadere, to fall: see case
deciduous definition by American Heritage Dictionary
- Falling off or shed at a specific season or stage of growth: deciduous antlers; deciduous leaves; deciduous teeth.
- Shedding or losing foliage at the end of the growing season: deciduous trees.
- Not lasting; ephemeral.
Origin: From Latin dēciduus, from dēcidere, to fall off : dē-, de- + cadere, to fall; see kad- in Indo-European roots.
- de·cidˈu·ous·ly adverb
- de·cidˈu·ous·ness noun
deciduous - Medical Definition
- Falling off or shed at a specific stage of growth, as teeth of the first dentition.
- Of, relating to, or being the first or primary dentition.
deciduous - Science Definition
- Shedding leaves at the end of a growing season and regrowing them at the beginning of the next growing season. Most deciduous plants bear flowers and have woody stems and broad rather than needlelike leaves. Maples, oaks, elms, and aspens are deciduous. Compare evergreen. See more at abscission.
- Falling off or shed at a particular season or stage of growth, as antlers.