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