Gray'lag` noun (Zoology) The common wild gray goose ( Anser anser ) of Europe, believed to be the wild form of the domestic goose. See Illust . of Goose . Found on http://www.encyclo.co.uk/webster/G/54
The USS Graylag was an American Admirable Class minesweeper of 625 tons displacement launched in 1943. The USS Graylag was powered by diesel engines providing a top speed of 14.5 knots and carried a complement of 104. She was armed with one 3 inch dual-purpose gun and four 40 mm anti-aircraft guns. Found on http://www.probertencyclopaedia.com/browse/RG.HTM