a stretch of salt water separated from the sea by a low sandbank or coral reef (由沙丘、珊瑚礁与海隔开的)咸水湖 ■the enclosed water of an atoll 泻湖,礁湖 ■(N. Amer. & Austral./NZ)a small freshwater lake near a larger lake or river (北美,澳/新西兰)(大湖或河边的)小淡水湖 ■an artificial pool for the treatment of effluent or to accommodate an overspill from surface drains during heavy rain 贮留池
派生 lagoonal adjective 语源
early 17th cent.: from Italian and Spanish laguna, from Latin lacuna (see lacuna)