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limestone
Definition
Limestone is a type of rock that is made up of calcium carbonate. It is the most common type of sedimentary rock in the world. Limestone is formed when the remains of dead organisms, such as coral, shells, and algae, are buried in the ocean. Over time, these remains are compressed and cemented together to form limestone.
Limestone is a very important rock. It is used to make cement, lime, and other building materials. It is also used to make fertilizer, paper, and even toothpaste.
How can the word be used?
A chemical compound that is the main component of limestone.
Different forms of the word
Noun: Limestone is a type of sedimentary rock that is composed primarily of calcium carbonate. It is formed when the shells and skeletons of marine organisms, such as coral and clams, are deposited on the ocean floor and then buried over time.
Adjective: Limestone can also be used as an adjective to describe something that is made of limestone. For example, a limestone cave is a cave that is formed in limestone rock.
Verb: To limestone is to treat something with limestone. For example, to limestone a garden bed is to add limestone to the soil to improve its pH balance.
Etymology
The word "limestone" comes from the Old English word "limstan", which means "lime stone". It was first used in English in the 10th century.
The Old English word "limstan" is made up of two words: "lim", which means "lime", and "stan", which means "stone".
So, the word "limestone" literally means "stone that contains lime".
Question
What is limestone?