The Collaborative International Dictionary of English v.0.48:

Theobromic \The`o*bro"mic\, a. (Chem.)
   Of, pertaining to, or designating, an acid extracted from
   cacao butter (from the Theobroma Cacao), peanut oil (from
   Arachis hypogaea), etc., as a white waxy crystalline
   substance.
   [1913 Webster]