from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A specialized gland in marine animals that excretes the excess salt taken into the body.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. 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


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