
1) Four-syllable foot
Found on
https://www.crosswordclues.com/clue/choriambus

• (n.) A foot consisting of four syllables, of which the first and last are long, and the other short (- ~ ~ -); that is, a choreus, or trochee, and an iambus united.
Found on
http://thinkexist.com/dictionary/meaning/choriambus/
Cho`ri·am'bus noun ;
plural Latin
Choriambi , English
Choriambuses . [ Latin
choriambus , Greek ...; ... a choreus + ... iambus.]
(Anc. Pros.) A foot consisting of four syllables, of which the first and last are long, and the other short (- ⌣ ⌣ -); that...
Found on
http://www.encyclo.co.uk/webster/C/72

In prosody, a choriambus is a foot consisting of four syllables, of which the first and last are long, and the others short; that is, a choreus or trochee, and an iambus united.
Found on
http://www.probertencyclopaedia.com/browse/AC.HTM
No exact match found.