Word: keelbacks
Part of speech: Noun
Syllables: keel
backs
Definition: Plural of keelback;  and are found primarily in Southeast Asia
Morphemes:
Affix: keel
Language: en
PoS: Noun
Meaning: A type of flat-bottomed boat.
Affix: back
Language: en
PoS: Noun
Meaning: The keel and keelson of a ship.
Affix: -s
Language: en
PoS: Suffix
Meaning: Used to form many pluralia tantum (nouns that are almost or entirely without singular forms).