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slate
Definition
Slate is a type of rock that is made up of very fine-grained minerals. It is often used for roofing, blackboards, and other applications where a smooth, durable surface is needed.
Slate is formed when mudstone is subjected to high pressure and heat. The mudstone is transformed into slate, which is a metamorphic rock.
Slate is a very strong rock, and it is also very durable. It is resistant to weathering and erosion, which is why it is often used for roofing and other outdoor applications.
Slate is also a very smooth rock, which is why it is often used for blackboards. The smooth surface makes it easy to write on, and the durability of slate means that it will last for many years.
How can the word be used?
The roof of the house is made of slate.
Different forms of the word
Noun:
- a fine-grained sedimentary rock that is easily split into thin sheets.
- a roof or covering made of slate.
- a piece of slate used for writing or drawing on.
Verb:
- to cover with slate.
- to write or draw on slate.
Etymology
The word "slate" comes from the Old English word "slæt", which also means "slate".
The first recorded use of the word "slate" in English was in the 8th century.
The word "slate" is an Old English word, and it is related to the Dutch word "leiste" and the German word "Schiefer".
Question
What is slate used for?