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infinitesimal

UK:^*UK and possibly other pronunciationsUK and possibly other pronunciations/ˌɪnfɪnɪˈtɛsɪm^əl/

US:USA pronunciation: IPAUSA pronunciation: IPA/ˌɪnfɪnɪˈtɛsəməl/

US:USA pronunciation: respellingUSA pronunciation: respelling(in′fin i tes′ə məl)

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infinitesimal
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Synonyms:

microscopic, minuscule, atomic, subatomic

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