[Pan.do.ra's box] n [fr. the box, sent by the gods to Pandora, which she was forbidden to open and which loosed a swarm of evils upon mankind when she opened it out of curiosity] (1579): a prolific source of troubles
PANDORA'S BOX
Meaning of PANDORA'S BOX in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012