Noun white cedar has 2 senses
- American arborvitae, northern white cedar, white cedar, Thuja occidentalis - small evergreen of eastern North America having tiny scalelike leaves on flattened branchlets
--1 is a kind of arborvitae
--1 is a member of Thuja, genus Thuja
- southern white cedar, coast white cedar, Atlantic white cedar, white cypress, white cedar, Chamaecyparis thyoides - slow-growing medium-sized cedar of east coast of the United States; resembles American arborvitae
--2 is a kind of cedar, cedar tree
--2 is a member of Chamaecyparis, genus Chamaecyparis
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