Meaning of CISTERN in English

CISTERN

■ noun

1》 a water storage tank, especially as part of a flushing toilet.

2》 an underground reservoir for rainwater.

Origin

ME: from OFr. ~e , from L. ~a , from cista (see cist 2 ).

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.