verb (used without object), ef·fer·vesced, ef·fer·vesc·ing.
- to give off bubbles of gas, as fermenting liquors.
- to issue forth in bubbles.
- to show enthusiasm, excitement, liveliness, etc.: The parents effervesced with pride over their new baby.
- (of a liquid) to give off bubbles of gas
- (of a gas) to issue in bubbles from a liquid
- to exhibit great excitement, vivacity, etc
1650s, “the action of boiling up,” from French effervescence (1640s), from Latin effervescentem, present participle of effervescere “to boil up, boil over,” from ex- “out” (see ex-) + fervescere “begin to boil,” from fervere “be hot, boil” (see brew). Figurative sense of “liveliness” is from 1748. Related: Effervescency.
1702, from Latin effervescere (see effervescence). Related: Effervesced; effervescing.
- The bubbling of a solution due to the escape of gas. The gas may form by a chemical reaction, as in a fermenting liquid, or by coming out of solution after having been under pressure, as in a carbonated drink.