A section of pipe, frequently decorative as well as functional, designed to collect rainwater at the top of a drainpipe, or to funnel the outflow from several pipes into a single downpipe.
Origin
Early 19th century; earliest use found in The Times.
Definition of rainwater head in US English:
rainwater head
noun
A section of pipe, frequently decorative as well as functional, designed to collect rainwater at the top of a drainpipe, or to funnel the outflow from several pipes into a single downpipe.
Origin
Early 19th century; earliest use found in The Times.