Meanings
plural megaseconds
- metrologyAn SI unit of time equal to 10⁶ seconds. Symbol: Ms. (= 11.5741 days)
Holonyms: fortnight < month < year < gigasecond < century < kiloannum, kiloyear, millennium < terasecond < mega-annum, megayear < petasecond < giga-annum, gigayear < exasecond < zettasecond < yottasecond < ronnasecond < quettasecond
1 more example
Meronyms: quectosecond < rontosecond < yoctosecond < zeptosecond < attosecond < femtosecond < picosecond < nanosecond < microsecond < millisecond < centisecond < decisecond < second < decasecond < minute < hectosecond < kilosecond < hour < day < week
Origin
- Proto-Indo-European*méǵh₂s
- Proto-Hellenic*mégas
- Ancient Greekμέγᾰς (mégăs)
- Englishmega-
- Englishsecond
- Englishmegasecond
Translations
Dutch megaseconde
- megaseconde1,000,000 seconds
Slovak megasekunda
- megasekunda1,000,000 seconds
Spanish megasegundo
- megasegundo1,000,000 seconds
Cite this entry
megasecond. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/megasecond
“megasecond.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/megasecond. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “megasecond,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/megasecond.
Source: megasecond on Wiktionary, CC BY-SA 4.0.