salt gland

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of various glands in a plant or animal that excretes a concentrated salt solution.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun a specialized gland, located near the eyes or nose of certain marine animals that secretes a liquid having a high salt content; it enables the animal to drink seawater without having to eliminate the excess salt through the kidneys