Here's what rhymes with semihemispherical.
spherical hemispherical hysterical Words that almost rhyme with semihemispherical
helical angelical evangelical vesicle vesical heretical metrical technical theoretical lexical poetical symmetrical nonsensical unethical obstetrical testicle hermetical identical electrical asymmetrical antithetical parenthetical nontechnical unsymmetrical geometrical alphabetical arithmetical biomedical exegetical academical diametrical nonelectrical dialectical ecumenical imperceptible indelible nonidentical extendible infinitesimal petrochemical trigonometrical pyrotechnical electrochemical incomprehensible