waterbody

A body of water is any significant accumulation of water such as an ocean, a lake, or a river, usually covering the Earth or another planet. Some bodies of water can be man-made, or artificial, such as a pond, lake or harbor, but most are naturally occurring geographical features. Bodies of water that are navigable are known as waterways. Some bodies of water collect and move water, such as rivers and streams, and others primarily hold water, such as lakes and oceans. The term 'body of water' can also refer to a reservoir of water held by a plant, technically known as a phytotelma. In common usage, the term 'body of water' is usually used to refer only to a large accumulations of water, such as oceans, seas and lakes. It is less commonly used to refer to smaller pools of water such as ponds, puddles or wetlands. Rivers, streams, canals and other geographical features where water moves from one place to another are not always considered bodies of water, but are included here as geographical formations featuring water.
See more at Wikipedia.org...