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