bipennate

Etymology
From.

Adjective

 * 1)  Of, pertaining to, or having the nature of a muscle, the fibres of which attach to a tendon on two sides (as a feather barbed on both sides).
 * 2)  Bipinnate (pinnate and having a pinnate leaflet).
 * 3) Having two wings; bipennated.
 * 1)  Bipinnate (pinnate and having a pinnate leaflet).
 * 2) Having two wings; bipennated.
 * 1) Having two wings; bipennated.
 * 1) Having two wings; bipennated.
 * 1) Having two wings; bipennated.