say it: ik-stur-muh-NAY-shuhn
extermination is a noun meaning "complete annihilation". It carries 2 recorded senses.
complete annihilation
“they think a meteor cause the extinction of the dinosaurs”
the act of exterminating
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for extermination come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.