episterna

1 definition found

episterna - Collaborative International Dictionary of English v.0.48 :

  Episternum \Ep`i*ster"num\, n.; pl. Episterna. [NL. See
     Epi-, and Sternum.]
     1. (Anat.)
        (a) A median bone connected with the sternum, in many
            vertebrates; the interclavicle.
        (b) Same as Epiplastron.
            [1913 Webster]
  
     2. (Zo["o]l.) One of the lateral pieces next to the sternum
        in the thorax of insects.
        [1913 Webster]