stour

noun

1.
free microscopic particles of solid material
dusty dust
2.
a long pole used to propel or guide a barge
barge pole
3.
one of the crosspieces that form the steps of a ladder
rundle rung spoke
4.
one of several thin slats of wood forming the sides of a barrel or bucket
lag stave
5.
a large natural stream of water (larger than a creek)
ea Rine Tigris waterpath river