say it: DED-uhn
deaden is a verb meaning "make vague or obscure or make (an image) less visible". It carries 7 recorded senses.
plant
become lifeless, less lively, intense, or active; lose life, force, or vigor
convert (metallic mercury) into a grey powder consisting of minute globules, as by shaking with chalk or fatty oil
chemistry
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 deaden 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.