The Collaborative International Dictionary of English v.0.48:

Coffee \Cof"fee\ (k[add]"f[-e]; k[o^]f"f[-e]; 115), n. [Turk.
   qahveh, Ar. qahuah wine, coffee, a decoction of berries. Cf.
   Caf['e].]
   1. The "beans" or "berries" (pyrenes) obtained from the
      drupes of a small evergreen tree of the genus Coffea,
      growing in Abyssinia, Arabia, Persia, and other warm
      regions of Asia and Africa, and also in tropical America.
      [1913 Webster +PJC]

   2. The coffee tree.
      [1913 Webster]

   Note: There are several species of the coffee tree, as,
         Coffea Arabica, Coffea canephora, Coffea
         occidentalis, and Coffea Liberica. The white,
         fragrant flowers grow in clusters at the root of the
         leaves, and the fruit is a red or purple cherrylike
         drupe, with sweet pulp, usually containing two pyrenes,
         commercially called "beans" or "berries".
         [1913 Webster]

   3. The beverage made by decoction of the roasted and ground
      berry of the coffee tree.
      [1913 Webster]

            They have in Turkey a drink called coffee. . . .
            This drink comforteth the brain and heart, and
            helpeth digestion.                    --Bacon.
      [1913 Webster]

   4. a cup of coffee[3], especially one served in a restaurant;
      as, we each had two donuts and a coffee; three coffees to
      go.
      [PJC]

   5. a social gathering at which coffee is served, with
      optional other foods or refreshments.
      [PJC]

   6. a color ranging from medium brown to dark brown.
      [PJC]

   Note: The use of coffee is said to have been introduced into
         England about 1650, when coffeehouses were opened in
         Oxford and London.
         [1913 Webster]

   Coffee bug (Zool.), a species of scale insect (Lecanium
      coff[ae]a), often very injurious to the coffee tree.

   Coffee rat (Zool.) See Musang.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Coffea liberica
    n 1: small tree of West Africa [syn: Liberian coffee, Coffea
         liberica]