water seal
noun
A seal that uses water to prevent the escape of gas or liquid; specifically = trap.
Origin
Mid 19th century.
- unrelentless
- unrelevant
- unreliability
- unreliable
- unreliableness
- unreliably
- unrelievable
- unrelieved
- unrelievedly
- unreligiosity
- unreligious
- unrelinquishable
- unrelinquishably
- unrelinquished
- unrelishable
- unrelished
- unrelishing
- unreluctant
- unreluctantly
- unremarkable
- unremarkably
- unremarked
- unremarried
- unremediable
- unremedied