bombardment

noun

1. the rapid and continuous delivery of linguistic communication (spoken or written)"a barrage of questions"
2. the heavy fire of artillery to saturate an area rather than hit a specific target"they laid down a barrage in front of the advancing troops"
3. the act (or an instance) of subjecting a body or substance to the impact of high-energy particles (as electrons or alpha rays)
4. an attack by dropping bombs