trigeminal

(tri-jem'i-nal). Relating to the fifth cranial or trigeminus nerve, t. cough, a reflex cough due to irritation of the terminals of the trigeminus nerve in the upper respiratory pa ages, t. impres's ion, impre io trigemini [BNA]. nerve, nervus trigeminus, neural'- gia, facial neuralgia, tic douloureux, t. pulse, puls us trigeminus.