Pecan \Pe*can"\, n. [Cf. F. pacane the nut.] (Bot.)
A species of hickory ({Carya oliv[ae]formis}), growing in
North America, chiefly in the Mississippi valley and in
Texas, where it is one of the largest of forest trees; also,
its fruit, a smooth, oblong nut, an inch or an inch and a
half long, with a thin shell and well-flavored meat. [Written
also {pacane}.]