Periods

A punctuation mark, geological time unit, or mathematical term.

full stops time divisions

In grammar, periods are punctuation marks used to indicate the end of a sentence. In science, particularly geology and paleontology, periods refer to subdivisions of eras in the geological time scale. In mathematics, a period refers to the length of one full cycle of a periodic function.

The word 'period' comes from the Latin 'periodus,' meaning a boundary or limit.

A period can be a dot at the end of a sentence, like this., or a really long stretch of time in Earth's history, like the Jurassic Period.

The full stop is also known as a period
Geological periods are defined by significant changes in the fossil record
The concept of geological time periods was developed by geologists like Charles Lyell

What is a period? It's a punctuation mark used to indicate the end of a sentence
What are geological periods? They are divisions of Earth's geologic time scale, like the Triassic or Cretaceous
What is a period in math? It can refer to a repeating pattern of numbers

punctuation geology mathematics

full stop decimal point geological era cycle

sentence geological time scale periodic function

chronological mathematical concept symbol