Malacostomous Mal`a*cos"to*mous, a. [Gr. malako`s soft + ? mouth.] (Zo["o]l.) Having soft jaws without teeth, as certain fishes. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • malacostomous — malacostomous, a. (mæləˈkɒstəməs) [f. mod.L. malacostom us (Ray s Willughby 1686; f. Gr. µαλακό ς soft + στόµ α mouth) + ous.] Of fishes: Having a soft mouth (i.e. toothless jaws); leather mouthed. in Chambers Cycl. Supp. in Ash; and in mod.… …   Useful english dictionary

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