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as·phalt

asphalt

 
pronunciation:
aes fawlt
part of speech: noun
definition: Asphalt is a black, sticky substance. It can be found in nature, but it is often created by people from oil and coal tar. Hot asphalt is often mixed with small rocks or sand and used to make roads and other things. This mixture is also called asphalt. When asphalt cools, it becomes hard.
The school playground contains asphalt.
derivation: asphaltic (adj.)