Here's what rhymes with microcrystalline.
                        
                        
                    
                                line  crystalline  align  aline  fine  nine  sign  mine  wine  assign  pine  shine  shrine  thine  dine  sine  vine  brine  sein  tine  whine  affine  malign  zine  interline  design  divine  decline  define  benign  spine  iodine  resign  refine  supine  swine  thiamine  twine  underline  centerline  lacustrine  proline  waterline  opine  realign  stein  superfine  timberline  noncrystalline  alkaline  confine  dopamine  endocrine  undermine  borderline  incline  atropine  cysteine  palatine  pyridine  serpentine  consign  exocrine  hyperfine  polycrystalline  saccharine  thymine  enshrine  recline  asinine  intertwine  reassign  cosign  turpentine  redefine  redesign  imipramine  anodyne  anticline  byzantine  calamine  crinoline  entwine  valentine  eglantine  celandine  disincline  clementine  epinephrine  concubine  monoamine  porcupine  recombine  columbine  reconsign  tetracycline  neuroendocrine  norepinephrine  Words that almost rhyme with microcrystalline
lime  rhyme  rime  time  crime  prime  climb  clime  dime  hym  slime  beim  chime  grime  heing  mime  thyme  chyme  sublime  suppertime  birdlime  anteing  begrime  paradigm  overtime  onetime  summertime  dinnertime  wintertime  sauteing  maritime  anytime  pantomime  lysozyme  mesenchyme  mistime  flexitime  environ