Definition of onrush noun from the Oxford Advanced Learner's Dictionary

 

onrush

 noun
noun
BrE BrE//ˈɒnrʌʃ//
 
; NAmE NAmE//ˈɑːnrʌʃ//
 
, NAmE//ˈɔːnrʌʃ//
 
[singular]
 
jump to other results
a strong movement forward; the sudden development of something She was seized by an onrush of nerves.
See the Oxford Advanced American Dictionary entry: onrush