plural of river otter

(US, geography) The canonical name of the great river Mississippi.

A river in eastern Ontario, Canada, which joins the Ottawa River.

plural of river snail

Any snail of the family Viviparidae.

A bird, the sand martin.

The lowest part of a river, where the water meets the ground below. / The alluvial land along the margin of a river.

plural of river swallow

plural of river bottom

plural of river-water