The phrase "veritable explosion" means a strong and sudden burst or outbreak of something, usually implying a large quantity or intensity. Full definition
Don't forget to grate the nutmeg fresh for a veritable explosion of nutmeg - y soul. (betterbaking.com)
This meatloaf is a veritable explosion of flavor, a true Mexican Fiesta for the mouth, complete with mariachis, maracas, piñatas and all. (thehealthyfoodie.com)
There is a «veritable explosion» in the number of people using digital and wearable devices to record, analyze, and reflect upon data created by their own bodies and behaviors. (science.sciencemag.org)