what is bigger than a millennium

One million (1,000,000), or one thousand thousand, is the natural number following 999,999 and preceding 1,000,001. The word is derived from the early Italian millione (milione in modern Italian), from mille, “thousand”, plus the augmentative suffix -one. … 1,000,000 is also the square of 1000 and also the cube of 100.

What is 500 years called?

1. quincentenary – the 500th anniversary (or the celebration of it) quincentennial.

What is the root word for millennia?

The word millennium derives from the Latin mille, thousand, and annus, year.

What is the meaning of annum?

: by the year : in or for each year : annually. per annum. adverb.

What is a Vicenarian?

Vicenarian: Someone in his or her twenties. Tricenarian: Someone in his or her thirties.

What is half a centenary?

Adjective. 50 year-old. half-century-old. 50 year-old. half centenarian.

What are 40 somethings called?

A quadragenarian is someone in their 40s (40 to 49 years old), or someone who is 40 years old. Quadragenarian can also be used as an adjective to describe someone in their 40s, as in I never thought I’d be a quadragenarian grandmother, or things related to such a person, as in I have entered my quadragenarian years.

What does Demi decade mean?

A demi-decade is a period of time considered to be equivalent to half a decade, roughly five years. … Prototypically this milestone falls in years which end in the number 5, since the most common perception of a decade is the run of years ending in digits 0 to 9.

How do you say Vicennial?

What is every ten years called?

Definition of decennial

1 : consisting of or lasting for 10 years. 2 : occurring or being done every 10 years the decennial census. Other Words from decennial More Example Sentences Learn More About decennial.

What’s shorter than a second?

The units smaller than a second are: Milliseconds: 10^–³ s. Microseconds: 10^–⁶ s. Nanoseconds: 10^–⁹ s.

What is a shake in time?

A shake is an informal metric unit of time equal to 10 nanoseconds, or 10⁻⁸ seconds. It has applications in nuclear physics, helping to conveniently express the timing of various events in a nuclear reaction, especially neutron reactions.

Why is 1 second a second?

Today, one second is defined as “9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom”. That’s a mouthful. … It was called the ephemeris second, and was simply a fraction of a year, as defined by Newcomb’s tables.