IPA: /ˈdʒɔːləs/
KK: /ˈdʒɔːləs/
Not having a jaw, which is the bony structure that holds the teeth in place in many animals.
Some ancient fish were jawless, relying on suction to feed.
Jawless → It is formed from "jaw" (from Old English "ceafl", meaning the lower part of the face used for chewing) and "-less" (meaning without). The word "jawless" describes an organism that lacks a jaw.
Think of an animal that is 'without' ('-less') a 'jaw' — that's why 'jawless' means lacking a jaw.