river steamboat
US
noun
= river steamer.
Origin
Early 19th century.
- retropharyngeal
- retroposition
- retroposon
- retropropulsion
- retropulsion
- retropulsive
- retroreflection
- retroreflective
- retroreflector
- retrorocket
- retrorse
- untenanted
- untended
- untenured
- Untermensch
- Untermeyer, Louis
- untestable
- untested
- untether
- unthanked
- unthankful
- unthankfully
- unthankfulness
- unthaw
- untheorised