Here's what rhymes with tympanogenic.
splenic transgenic biogenic eugenic neurogenic phrenic irenic antigenic pathogenic psychogenic pyogenic teratogenic androgenic allergenic photogenic telegenic carcinogenic cryogenic iatrogenic mutagenic hypoallergenic anthropogenic neurasthenic schizophrenic hallucinogenic calisthenic callisthenic Words that almost rhyme with tympanogenic
pandemic totemic pfennig endemic polemic academic epidemic systemic ischemic leukaemic epistemic nonacademic technic benthic derrick poetic pelvic angelic ferric relic peptic eutectic steric medic fetich pectic unauthentic genetic authentic energetic generic acetic majestic metric pathetic ascetic forensic numeric septic centric cleric enteric hectic allelic emetic sceptic turmeric inauthentic pyrotechnic bathetic domestic magnetic aesthetic kinetic prophetic athletic diabetic esoteric esthetic mesenteric phonetic apathetic aseptic diuretic obstetric skeptic tartaric chimeric dietetic geodesic geodetic hermetic hysteric acerbic evangelic lovesick polytechnic gametic paregoric parenthetic redbrick unaesthetic copacetic electric sympathetic synthetic anesthetic dialectic dielectric eccentric geometric symmetric apologetic concentric cosmetic eclectic epileptic alphabetic anaesthetic prosthetic cybernetic egocentric empathetic ethnocentric frenetic isomeric monomeric neuroleptic ontogenetic psychedelic anorexic dyslexic dyspeptic geocentric peripatetic anorectic antipathetic antithetic homiletic paramedic paraplegic splenetic thermometric diametric exegetic phrenetic dyslectic arithmetic atmospheric antiseptic asymmetric parametric isometric psychometric unsympathetic barometric geomagnetic kinesthetic paramagnetic photometric alphanumeric apoplectic ionospheric cataleptic nonmagnetic unapologetic telekinetic nonathletic nonelectric unesthetic cliometric econometric photoelectric photosynthetic phylogenetic antidiuretic biosynthetic colorimetric isoelectric piezoelectric trigonometric radiometric onomatopoetic narcoleptic psychokinetic volumetric parasympathetic ferromagnetic nonparametric stoichiometric anthropocentric heliocentric electromagnetic hydroelectric pharmacokinetic