Geoduck n. : A gigantic clam (Glycimeris generosa) of the Pacific coast of North America, highly valued as an article of food.

Example:
Where can i find Geoduck hunting equiptment?

Taxonomy
Geoduck Clam, geoducks, clam, Puget Sound, farming, impacts, farm, tidelands, harvest, beach, regulations, Fisheries, populations, sediment, siphon, environmental impacts, aquaculture, Shellfish.

Defination from the web:
geoduck's longevity is the result of low wear and tear. A geoduck sucks plankton down through its long siphon, filters them for food and ejects its refuse out through a separate hole in the siphon. ...