phrenic

from WordNet (r) 3.0 (2006)

phrenic
    adj 1: of or relating to the diaphragm; "phrenic nerve"

from The Collaborative International Dictionary of English v.0.48

Phrenic \Phren"ic\ (fr[e^]n"[i^]k), a. [Gr. frh`n, freno`s, the
   midriff, or diaphragm, the heart, the mind: cf. F.
   phr['e]nique.] (Anat.)
   Of or pertaining to the diaphragm; diaphragmatic; as, the
   phrenic nerve.
   [1913 Webster]