Definitions of mentum
  1. noun
    the protruding part of the lower jaw
    synonyms: chin
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    buccula, double chin
    a fold of fatty tissue under the chin
    type of:
    feature, lineament
    the characteristic parts of a person's face: eyes and nose and mouth and chin
  2. noun
    a projection below the mouth of certain mollusks that resembles a chin
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    type of:
    body part
    any part of an organism such as an organ or extremity
  3. noun
    a projection like a chin formed by the sepals and base of the column in some orchids
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    type of:
    plant part, plant structure
    any part of a plant or fungus
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