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