water bed
Noun
Meaning
A kind of mattress made of, or covered with, waterproof fabric and filled with water. It is used in hospitals for bedridden patients.
Source: Webster's dictionaryAlternative names
water-bed
Synonyms
Hypernyms
Examples
The amount of slapstick and physical humour in storylines increased during the 1990s, with comical characters such as Reg Holdsworth and his water bed.
The water bed is narrow and the average drop is large, so the flow in this section is extremely turbulent and fast.