Pronunciation: (pu-nin'su-lu, -nins'yu-lu), [key]
1. an area of land almost completely surrounded by water except for an isthmus connecting it with the mainland.
2. the Peninsula,
a. Spain and Portugal together; Iberian Peninsula; Iberia.
b. a district in SE Virginia between the York and James rivers: Civil War battles.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.