intransitive verb-·resced′, -·resc′ing
- to blossom out; flower; bloom
- to change from a crystalline to a powdery state through loss of the water of crystallization when exposed to air
- to develop a powdery crust as a result of evaporation or chemical change
Origin of effloresceClassical Latin efflorescere, to blossom, flourish from ex-, out + florescere, to begin to blossom from florere, to blossom from flos (gen. floris), a flower: see bloom
intransitive verbef·flo·resced, ef·flo·resc·ing, ef·flo·resc·es
- To blossom; bloom.
- To develop or flourish: when the arts effloresced.
- Chemistry a. To become a powder by losing water of crystallization, as when a hydrated crystal is exposed to air.b. To become covered with a powdery deposit.
Origin of effloresceLatin efflōrēscere ex- ex- flōrēscere inchoative of flōrēre to blossom ( from flōs flōr- flower ; see bhel-3 in Indo-European roots.)
(third-person singular simple present effloresces, present participle efflorescing, simple past and past participle effloresced)