from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biology The bony or cartilaginous portion of the upper hyoid arch in some fish


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  • In the transition to life on land, the hyomandibula loses these functions and the bone becomes available for an eventual role in hearing.

    Spero News 2008

  • In humans, as in other mammals, the hyomandibula, or stapes, is one of the tiny bones in the middle ear.

    Spero News 2008

  • Other adaptations include a flattened head, elongated snout, and reduction of the hyomandibula, a bone that in fish corridinates movement between the braincase, pallete, and gills.

    Water Conserve: Water Conservation RSS Newsfeed 2008

  • The hyomandibula later evolved into a structure associated with hearing in mammals.

    Water Conserve: Water Conservation RSS Newsfeed 2008


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