adj.
-
[often in combination]
likely or liable to suffer from, do, or experience (something unfortunate):
accident-prone
farmed fish are prone to disease.
- lying flat, especially face downwards.
▸with the palm of the hand facing downwards.
- archaic with a downward slope or direction.
Derivative
Etymology
ME: from L. pronus ‘leaning forward’, from pro ‘forwards’.