Here's what rhymes with exothermic.

Consider these alternatives

vaporization / education oxidation / operation oxidizing / rising polymerization / information reactivity / activity polymerisation / relation enzymatic / dramatic ionization / information disproportionation / information acrosome / home catalyzes / enterprises oxidative / native dehydrogenation / education neutralization / relation hydroxide / dioxide interconversion / person nitrification / situation decomposition / position carboxylation / relation dissociation / relation deprotonation / education transesterification / education carbonation / education mutagenic / academic