say it: ma-stur-BAY-shuhn
masturbation is a noun meaning "manual stimulation of the genital organs (of yourself or another) for sexual pleasure". It is pronounced /ˌmæstɚˈbeɪʃən/ — ma-stur-BAY-shuhn. It carries one recorded sense.
manual stimulation of the genital organs (of yourself or another) for sexual pleasure
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 masturbation 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.