pecan

noun3

1. •
   A smooth, thin-shelled, edible oval nut of this tree.
2. •
   A half of the edible portion of the inside of this nut.

   • Each shell contains two pecans, usually plump and oblong in shape, although some varieties are round or pointed. — 2005
3. •
   A deciduous tree, Carya illinoinensis, of the central and southern United States, having deeply furrowed bark, pinnately compound leaves, and edible nuts.

   • And away on the farther bank, a motte of huge pecans, standing like giant sentinels over the dwarfed landscape, filled the eye with remote vistas in their shady, twilight aisles. It was very still. — 1885