Here's what rhymes with morpholines.
crinolines Words that almost rhyme with morpholines
cosines hoagies homeys phoneys proteins ponies neuroses toadies coneys dogies roadies trollies cozies moseys trophies cronies baronies snowfields toasties anchovies goldfields somebodies jalopies homebodies bluenoses macaronies ceremonies lipoproteins prognoses diagnoses testimonies glycoproteins cosmogonies hypertrophies patrimonies physiognomies misdiagnoses