WordNet (r) 3.0 (2006):

California bay tree
    n 1: Pacific coast tree having aromatic foliage and small
         umbellate flowers followed by olivelike fruit; yields a
         hard tough wood [syn: California laurel, California bay
         tree, Oregon myrtle, pepperwood, spice tree,
         sassafras laurel, California olive, mountain laurel,
         Umbellularia californica]