Here's what rhymes with crystallographic.
graphic traffic telegraphic orthographic xerographic demographic geographic photographic ethnographic radiographic bibliographic pornographic stratigraphic topographic cartographic holographic iconographic lithographic tomographic stenographic typographic biographic calligraphic seismographic chromatographic angiographic oceanographic autobiographic choreographic lexicographic phonographic cinematographic electrocardiographic electroencephalographic Words that almost rhyme with crystallographic
classic thoracic neoclassic intrathoracic psychopathic osteopathic magic tragic panic erratic lactic manic phallic clastic tannic malefic organic elastic plastic static fabric ceramic climatic dogmatic drastic frantic autocratic catholic rheumatic tactic chromatic galactic galvanic glutamic operatic thalamic achromatic italic magmatic pelagic syllabic acrobatic mastic tyrannic apparatchik priapic democratic dramatic dynamic automatic romantic aristocratic bureaucratic gastric hepatic metallic aromatic emphatic pancreatic pragmatic schematic scholastic somatic thematic traumatic volcanic barbaric ecstatic lymphatic mechanic nomadic oceanic pneumatic sporadic synaptic aliphatic asthmatic cephalic climactic fanatic ophthalmic panoramic programmatic spastic aplastic diaphragmatic heraldic phlegmatic satanic theocratic titanic slapstick ataxic botanic baldric aerobatic gigantic problematic psychiatric semantic inorganic monastic charismatic didactic dynastic enigmatic hemorrhagic hydrostatic inelastic metastatic prophylactic prostatic sarcastic axiomatic geriatric kinematic messianic nostalgic pedantic prismatic tympanic haemorrhagic muriatic orthostatic spermatic splanchnic technocratic zygomatic bimetallic bombastic isobaric orgiastic schismatic astigmatic disyllabic meritocratic panchromatic periphrastic plutocratic polysyllabic stigmatic matchstick unemphatic nonelastic diplomatic systematic fantastic cytoplasmic enzymatic hypothalamic neoplastic pediatric stochastic aerodynamic cinematic ecclesiastic emblematic endoplasmic monochromatic paradigmatic presynaptic anaphylactic diagrammatic gymnastic hyperplastic hypoplastic iconoclastic idiomatic intrahepatic monosyllabic posttraumatic protoplasmic thermoplastic undemocratic unproblematic viscoelastic antidemocratic chiropractic epigrammatic nonmetallic paediatric unromantic intergalactic interscholastic sycophantic thermostatic undramatic nondramatic symptomatic electrostatic idiosyncratic thermodynamic hemodynamic hydrodynamic melodramatic postsynaptic psychodynamic psychosomatic transatlantic homeostatic anticlimactic nondemocratic numismatic semiautomatic transoceanic photostatic undiplomatic enthusiastic asymptomatic unsystematic unidiomatic homoeostatic unenthusiastic overenthusiastic