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Megaannum is the term for a period of time consisting of one million years.
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∙ 12y ago
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What word means a million years?
Megaannum; the abbreviation is Ma.
What is one million years called?
I think the answer you are looking for is: 1 Million Years = 1 mellophone
What is the name for 1 million years?
Google! No, that's one, followed by a hundred zeros, and a super-easy way to get info. Megaannum!
What is 10000 years called?
Fastest Time:yocto-second is 10^-24 secondsZepto-second is 10^-21 secondsAtto-second is 10^-18 secondsFemto-second is 10^-15 secondsPico-second is 10^-12 secondsNano-second is 10^-9 secondsMicro-second is 10^-6 secondsMilli-second is 10^-3 secondsCenti-second is 10^-2 secondsDeci-second is 10^-1 secondsLongest Time:Second = ?Minute = 60 secondsHour = 60 Minutes1/2 Day = 12 HoursDay = 24 Hours; 1,440 minutesWeek = 7 days (Sunday, Monday, Tuesday, Wednesday, Thursday, Friday & Saturday)Month = 4 weeks; 28-31 daysYear = 12 months; 52 weeks; 365.4 days???? = ????Decade = 10 yearsCentury = 100 years (Ten decades)Millenium = 1,000 years (Ten centuries, Hundred decades)Kilennium = 10,000 years (Ten milleniums)Centrennium = 100,000 years ?Megaannum = 1 Million years (1,000 millennums)???? = ?????Aeon = 1 billion years (1,000 Megaannums)Trillienium = 1 trillion years ?But the sun is 200 trillion years old?
Is there a unit of time bigger than Millennium that still measures years?
According to Wikipedia (http://www.reference.com/browse/wiki/Annum) megaannum, usual symbol Ma, is a unit of time equal to one million (106) years. It is commonly used in scientific disciplines such as geology, paleontology, and celestial mechanics to signify very long time periods in the past. For example, the dinosaur species Tyrannosaurus rex was abundant approximately 65 Ma (65 million years) ago (ago may not always be mentioned; if the quantity is specified while not explicitly discussing a duration, one can assume that "ago" is implied; "mya" includes "ago" explicitly.). In astronomical applications, the year used is the Julian year of precisely 365.25 days. * gigaannum, usual symbol Ga, is a unit of time equal to one (short scale) billion (109) years. It is commonly used in scientific disciplines such as cosmology and geology to signify extremely long time periods in the past. For example, the formation of the Earth occurred approximately 4.57 Ga (4.57 billion years) ago. * exaannum, usual symbol Ea, is a unit of time equal to (1018) years (one quintillion on the short scale, one trillion on the long scale). It is an extremely long unit of time. The half-life of tungsten-180 is 1.8 Ea.
