The Collaborative International Dictionary of English v.0.48:

Teak \Teak\ (t[=e]k), n. [Malayalam tekku.] (Bot.)
   A tree of East Indies (Tectona grandis) which furnishes an
   extremely strong and durable timber highly valued for
   shipbuilding and other purposes; also, the timber of the
   tree. [Written also teek.]
   [1913 Webster]

   African teak, a tree (Oldfieldia Africana) of Sierra
      Leone; also, its very heavy and durable wood; -- called
      also African oak.

   New Zeland teak, a large tree (Vitex littoralis) of New
      Zeland; also, its hard, durable timber.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

African \Af"ri*can\, a. [L. Africus, Africanus, fr. Afer
   African.]
   Of or pertaining to Africa.
   [1913 Webster]

   African hemp, a fiber prepared from the leaves of the
      Sanseviera Guineensis, a plant found in Africa and
      India.

   African marigold, a tropical American plant (Tagetes
      erecta).

   African oak or African teak, a timber furnished by
      Oldfieldia Africana, used in ship building.
      [1913 Webster]

   African violet .

   African-American, see African-American.
      [1913 Webster]