EUCALYPTUS, n. [1.] A genus of trees remarkable for their abundance of assorted ill smells — including the Eucalyptus disgustus, the E. nasocompressus and the E. skunkatus. [2.] A tree holding, in the vegetable kingdom, the high and honored distinction enjoyed in the animal kingdom by the blue skunk. The variety most in favor is the E. disgustifolium. The medicinal value of its foliage is very great — it cures happiness.