jawlessadj.
Without jaws; spec. without a lower jaw, as the lamprey.
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the world > animals > animal body > general parts > head and neck > [adjective] > of the jaw or chin > without jaws
jawless1708
the world > life > the body > external parts of body > head > face > jaws > [adjective] > having no
jawless1708
1708 P. A. Motteux Wks. F. Rabelais (1737) iv. xv. 60 The jawless Bum shrug'd up his Shoulders.
1968 Times 19 Dec. 4/8 Lampreys, like hagfish, are surviving members of the jawless fishes, the first group of vertebrates to evolve.
1972 Sci. Amer. Nov. 61/3 Primitive jawless ostracoderms belonging to the orders Anaspida and Thelodonti.
This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2019).
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adj.1708