Here's what rhymes with tetradecapeptides.
                        
                        
                    
                                peptides  polypeptides  Words that almost rhyme with tetradecapeptides
reptiles  gentiles  textiles  centimes  neckties  bedsides  bedtimes  temporise  deadlines  percentiles  hairstyles  memorise  semis  hairlines  hemlines  necklines  headlines  lengthwise  breadlines  polarise  extemporise  spellbinds  accessorise  clotheslines  burglarise  vulgarise  depolarise