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