Here's what rhymes with photonic.
tonic ionic sonic conic phonic bionic chronic ironic demonic iconic sardonic isotonic subsonic daemonic acetonic harmonic tectonic chorionic colonic mnemonic supersonic hypertonic laconic platonic symphonic diatonic avionic embryonic hegemonic diachronic histrionic monotonic polyphonic synchronic catatonic telephonic hydroponic electronic ultrasonic planktonic monophonic infrasonic ganglionic pathognomonic stereophonic philharmonic quadraphonic quadrophonic architectonic microelectronic Words that almost rhyme with photonic
atomic comic autonomic genomic anatomic diatomic subatomic economic ergonomic taxonomic agronomic astronomic tragicomic uneconomic gastronomic socioeconomic macroeconomic microeconomic topic boric logic toxic folic gothic tropic atopic biotic robotic bardic subtopic hayrick rollick historic symbolic cosmic aortic chaotic erotic garlic hydraulic caustic hypnotic psychotic systolic idiotic isotopic phenolic pyloric fibrotic formic frolic gnostic hypoxic iambic karmic meiotic myopic cirrhotic folkloric seraphic strophic theosophic chopstick carsick shambolic shopaholic placekick periodic aquatic exotic neurotic biologic caloric cytotoxic despotic episodic geologic isotropic melodic carbolic hyperbolic semiotic symbiotic synoptic anabolic anarchic anoxic basaltic cathodic cytologic euphoric meteoric orthodontic psychotropic sclerotic thrombotic bucolic diabolic hierarchic homoerotic vitriolic heartsick rhapsodic subarctic sophomoric subtropic horologic metabolic patriotic apostolic philosophic diastolic histologic narcotic neurologic pathologic ascorbic etiologic metaphoric necrotic parabolic psychologic spasmodic yardstick agnostic cathartic lethargic nontoxic oligarchic pedagogic antarctic demagogic xenophobic acrostic ecologic allegoric aetiologic chocoholic chocaholic diagnostic alcoholic antibiotic hydrochloric physiologic prehistoric prognostic anisotropic endoscopic metamorphic morphologic hematologic polymorphic quixotic telescopic arthroscopic gyroscopic stroboscopic workaholic macrobiotic posthypnotic haematologic seismologic astronautic catastrophic philanthropic atherosclerotic melancholic peristaltic fluoroscopic unpatriotic misanthropic nonnarcotic noncaloric gynaecologic microscopic macroscopic anthropomorphic immunologic pharmacologic spectroscopic gynecologic stereoscopic kaleidoscopic microcosmic meteorologic epidemiologic bacteriologic antispasmodic nonalcoholic submicroscopic electroscopic