Definition from Wiktionary, the free dictionary
From Ancient Greek Σκύλλα.
- Rhymes: -ɪlə
Proper noun 
- A dangerous rock on the Italian coast opposite the whirlpool Charybdis on the coast of Sicily. The passage between Scylla and Charybdis was formerly considered perilous; hence, the saying between Scylla and Charybdis signifies a great peril on either hand.
- (Greek mythology) A personification of the above rock as a ravenous monster.