Longman Dictionary of Contemporary English homepage

Date: 1400-1500
Language: Latin
Origin: pronus


1 likely to do something or suffer from something, especially something bad or harmful
prone to
Some plants are very prone to disease.
prone to do something
Kids are all prone to eat junk food.
accident-prone/injury-prone etc
He's always been accident-prone.
2 formal lying down with the front of your body facing down [= prostrate]:
His eyes shifted to the prone body on the floor.
proneness noun [uncountable]
prone adverb:
Jack lay prone on his bed.

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