Pectoris rhymes with:
alarice, ambergris, barris, boris, boris', borris, caris, carris, childress, chloris, claris, clarisse, clarrisse, clitoris, cypris, darice, delores, denigris, derus, dolores, dorice, dorris, duris, endress, fabris, faris, farris, fentress, ferraris, ferris, fitzharris, fitzmaurice, fitzmorris, floris, garis, garris, gehris, glaris, harris, harris', harriss, huntress, jeffress, juris, landress, lathouris, laurice, leatrice, loris, lyris, makris, marice, maris, marris, matrice, medaris, montgoris, morice, moris, nerice, nigris, norris, orris, paris, paris', parris, pharris, poythress, puris, respress, sarris, seamstress, siris, solaris, sorice, souris, temptress, terris, tortorice, umphress, ventress, voris
Pectoris sounds like:
pasteurize, pasteurizes, pastor's, pastorius, pastors, pastries, pastures, pesters, picketers, picture's, pictures, pictures', picturesque, posteriors, posters, postures, psychiatric