What is the word for 1 billion years? Byr was formerly used in English-language geology and astronomy as a unit of one billion years. Subsequently, the term gigaannum has increased in usage, with Gy or Gyr still sometimes used in English-language works. Astronomers use Gyr or Gy as the symbol for gigayear.
How long is a gigayear? A gigayear, a billion years, is a common unit for cosmological times and time intervals, convenient, given that the current age-determination of the universe is between 13 and 14 gigayears. Abbreviations include Gy and Gyr.
How much is a gigayear? Gigayear definition
A billion (109) years.
What word represents a million years? Answer and Explanation:
A million years is called a megaannum, which is often abbreviated ‘Ma. ‘ This term comes from the word parts ‘mega’ which means ‘huge’ and ‘annum’ which means ‘year.
What is the word for 1 billion years? – Additional Questions
What is 1000000000 years called?
Some terms referenced do have year values assigned to them (Epoch at 1,000,000 years and Aeon at 1,000,000,000 years) but common usage relates to geological time periods which are not consistent in length.
What is 500 years called?
Definition of quincentenary
: a 500th anniversary or its celebration.
What’s another word for millions?
In this page you can discover 34 synonyms, antonyms, idiomatic expressions, and related words for million, like: 1000000, gazillion, multiplicity, billion, gob, milllion, percent, a-billion, jillion, Often used in plural: jillion and load.
What is the word for thousands of years?
noun. mil·len·ni·um | mə-ˈle-nē-əm plural millennia mə-ˈle-nē-ə or millenniums.
How long is a Megaannum?
Ma (for megaannus) — a unit of time equal to one million, years, or 1 E6 yr. The suffix “Ma” is commonly used in scientific disciplines such as geology, paleontology, and celestial mechanics to signify very long time periods into the past or future.
What is a mega year?
Noun. megayear (plural megayears) (abbreviated as: Myr) A million years, a thousand thousand years.
What does MA mean in years?
Ma is an abbreviation for one million years ago (Megannum).
Is Megaannum a word?
Mega-annum definition
A period of 1 million years.
What is the plural of Megaannum?
mega-annum (plural mega-annums or mega-anna) Synonym of megayear: a period of 1 million years.
