1.  cedar(n = noun.plant) cedar tree - any of numerous trees of the family Cupressaceae that resemble cedars;
is a kind of conifer, coniferous tree
is a member of cupressaceae, cypress family, family cupressaceae
has particulars: austrocedrus chilensis, chilean cedar, calocedrus decurrens, incense cedar, libocedrus decurrens, red cedar, atlantic white cedar, chamaecyparis thyoides, coast white cedar, southern white cedar, white cedar, white cypress, chamaecyparis lawsoniana, lawson's cedar, lawson's cypress, oregon cedar, port orford cedar, alaska cedar, chamaecyparis nootkatensis, nootka cypress, yellow cedar, yellow cypress, cryptomeria japonica, japan cedar, japanese cedar, sugi, incense cedar, kawaka, libocedrus plumosa, libocedrus bidwillii, mountain pine, pahautea

2.  cedar(n = noun.plant) cedarwood - durable aromatic wood of any of numerous cedar trees; especially wood of the red cedar often used for cedar chests;
is a kind of wood
has particulars: red cedar, port orford cedar

3.  cedar(n = noun.plant) cedar tree, true cedar - any cedar of the genus Cedrus;
is a kind of conifer, coniferous tree
is a member of cedrus, genus cedrus
has particulars: cedar of lebanon, cedrus libani, cedrus deodara, deodar, deodar cedar, himalayan cedar, atlas cedar, cedrus atlantica

   The name of several evergreen trees. The wood is remarkable for its durability and fragrant odor. [1913 Webster]
" The cedar of Lebanon is the Cedrus Libani; the white cedar (Cupressus thyoides) is now called Chamœcyparis sphæroidea; American red cedar is the Juniperus Virginiana; Spanish cedar, the West Indian Cedrela odorata. Many other trees with odoriferous wood are locally called cedar." [1913 Webster]

   Of or pertaining to cedar. [1913 Webster]

cedar, n.
1 any spreading evergreen conifer of the genus Cedrus, bearing tufts of small needles and cones of papery scales.
2 any of various similar conifers yielding timber.
3 (in full cedar wood) the fragrant durable wood of any cedar tree.

Derivative:
cedarn adj. poet.

Etymology:
ME f. OF cedre f. L cedrus f. Gk kedros

alaska cedar, atlantic white cedar, atlas cedar, bermuda cedar, canoe cedar, cedar bird, cedar chest, cedar elm, cedar mahogany, cedar nut, cedar of goa, cedar of lebanon, cedar rapids, cedar tree, cedar waxwing, chilean cedar, cigar-box cedar, coast white cedar, deodar cedar, east african cedar, eastern red cedar, ground cedar, himalayan cedar, incense cedar, japan cedar, japanese cedar, lawson's cedar, northern white cedar, oregon cedar, pencil cedar, pencil cedar tree, philippine cedar, port orford cedar, red cedar, southern red cedar, southern white cedar, spanish cedar, spanish cedar tree, stinking cedar, true cedar, western red cedar, white cedar, yellow cedar