(1)large voracious aquatic reptile having a long snout with massive jaws and sharp teeth and a body covered with bony plates; of sluggish tropical waters
(2)巨大な顎、鋭い歯、骨板で覆われている体のある長い口先を有する貧欲な水生は虫類
(3)淀んだ熱帯の水域の