The Collaborative International Dictionary of English v.0.48:

Egyptian \E*gyp"tian\, a. [L. Aegyptius, Gr. ?, fr. ? (L.
   Aegyptus) Egypt: cf. F. ['e]gyptien. Cf. Gypsy.]
   Pertaining to Egypt, in Africa.
   [1913 Webster]

   Egyptian bean. (Bot.)
   (a) The beanlike fruit of an aquatic plant (Nelumbium
       speciosum), somewhat resembling the water lily.
   (b) See under Bean, 1.

   Egyptian cross. See Illust. (No. 6) of Cross.

   Egyptian thorn (Bot.), a medium-sized tree (Acacia vera).
      It is one of the chief sources of the best gum arabic.
      [1913 Webster]