onrush

1 ENTRIES FOUND:
onrush /ˈɑːnˌrʌʃ/ noun
onrush
/ˈɑːnˌrʌʃ/
noun
Britannica Dictionary definition of ONRUSH
[singular]
1 
: a strong, fast movement forward — usually + of
2 
: a sudden development or appearance of something — usually + of

— onrushing

/ˈɑːnˌrʌʃɪŋ/ adjective, always used before a noun