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

Related terms

• MYA, Mya, mya (“million years ago”)