Submentum

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Submentum \Sub*men"tum\, n.; pl. {Submenta}. [NL. See {Sub-},
     and {Mentum}.] (Zool.)
     The basal part of the labium of insects. It bears the mentum.
     [1913 Webster]