Early 19th century; earliest use found in Philosophical Transactions of the Royal Society of London. From classical Latin pulver-, pulvispulver + -escent.
Definition of pulverescent in US English:
pulverescent
adjectiveˌpʌlvəˈrɛsnt
rare
Tending to become powdery; friable.
Origin
Early 19th century; earliest use found in Philosophical Transactions of the Royal Society of London. From classical Latin pulver-, pulvis pulver + -escent.