mega-annum

English

Etymology

From mega- +‎ annum.

Pronunciation

  • IPA(key): /ˌmɛɡəˈænəm/

Noun

mega-annum (plural mega-annums or mega-anna)

  2. Synonym of megayear: a period of 1 million years.
    Alternative forms: megannum, megaannum, Ma (symbol)
    Holonyms: petasecond < giga-annum, gigayear < exasecond
    Meronyms: quectosecond < rontosecond < yoctosecond < zeptosecond < attosecond < femtosecond < picosecond < nanosecond < microsecond < millisecond < centisecond < decisecond < second < decasecond < minute < hectosecond < kilosecond < hour < day < week < megasecond < fortnight < month < year < gigasecond < century < kiloannum, kiloyear, millennium < terasecond
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