Definition of deciduous
1 biology : falling off or shed seasonally or at a certain stage of development in the life cycle deciduous leaves deciduous scales
2 biology a : having deciduous parts maples, birches, and other deciduous trees deciduous dentitionb : having the dominant plants deciduous a deciduous forest
3 : ephemeral There is much that is deciduous in books … — J. R. Lowell
Examples of deciduous in a Sentence
the bare branches of a deciduous tree in winter
he chose not to fret about the deciduous discomforts of his existence
Recent Examples of deciduous from the Web
Most of the broad-leaf species – deciduous trees – are following moisture moving westward.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'deciduous'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of deciduous
Latin deciduus, from decidere to fall off, from de- + cadere to fall — more at chance
First Known Use: 1657
DECIDUOUS Defined for English Language Learners
Definition of deciduous for English Language Learners
of a tree, bush, etc. : having leaves that fall off every year
DECIDUOUS Defined for Kids
Definition of deciduous for Students
: made up of or having a part that falls off at the end of a period of growth and use deciduous trees
Medical Definition of deciduous
1: falling off or shed at a certain stage in the life cycle
2: having deciduous parts a deciduous dentition
Seen and Heard
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