fron·des·cence \fränˈdesən(t)s\noun (-s) Etymology: New Latin frondescentia, from Latin frondescent-, frondescens (present participle of frondescere to become leafy, incho. of frondēre) + -ia -y — more at frond 1.: the condition or period of unfolding of leaves 2.: foliage • fron·des·cent\(ˈ)frän|desənt\adjective