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1. A projection like a chin formed by the sepals and base of the column in some orchids
    
2. The protruding part of the lower jaw
   - chin
    
3. A projection below the mouth of certain mollusks that resembles a chin

Derived forms: mentums

Type of: body part, feature, lineament, plant part, plant structure

Part of: face, human face, insect, orchid, orchidaceous plant

Encyclopedia: Mentum