The Collaborative International Dictionary of English v.0.48:

Cormus \Cor"mus\ (k[^o]r"m[u^]s), n. [NL., fr. Gr. kormo`s the
   trunk of a tree (with the boughs cut off), fr. kei`rein to
   shear.]
   [1913 Webster]
   1. (Bot.) See Corm.
      [1913 Webster]

   2. (Biol.) A vegetable or animal made up of a number of
      individuals, such as, for example, would be formed by a
      process of budding from a parent stalk wherre the buds
      remain attached.
      [1913 Webster]