[ 'li:ənʌɪn ]
■ adjective
1》 relating to one of the popes named Leo, especially denoting the part of Rome fortified by Leo IV.
2》 Prosody (of medieval Latin verse) in hexameter or elegiac metre with internal rhyme.
↘(of English verse) with internal rhyme.
■ noun ( ~s ) Prosody ~ verse.
Origin
ME: from the name Leo , from L. leo 'lion'.