[1] : The Collaborative International Dictionary of English v.0.48

cedar \ce"dar\ s=e"d~er, n. as. ceder, fr. l. cedrus, gr.
   ke`dros. bot.
   the name of several evergreen trees. the wood is remarkable
   for its durability and fragrant odor.
   1913 webster

   note: the cedar of lebanon is the cedrus libani; the white
         cedar cupressus thyoides is now called
         chamoecyparis sphaeroidea; 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
see also:
cedrus libani cupressus thyoides chamoecyparis sphaeroidea juniperus virginiana cedrela odorata 

[2] : WordNet (r) 2.0

cedrela odorata
     n : tropical american tree yielding fragrant wood used
         especially for boxes syn: spanish cedar, spanish
         cedar tree
see also:
spanish cedar spanish cedar tree 

Odorata >> O Words
Odorata, definition of term: Odorata
odorata_pag1.html

Cedrela >> C Words
Cedrela, definition of term: Cedrela
cedrela_pag1.html