Outrageously Funny Word Dictionary :: Chelidonian

👉 The term "chelidonian" is used to describe a type of rock formation. It refers to a period of time during which the Earth's crust was mostly composed of molten iron and later became more solid due to cooling and compression. This process occurred over millions of years, starting about 530 million years ago and continuing through the present day until it reached its current state. The term "chelidonian" is often used in geological terms to denote a period of time

chelidonian