from The American Heritage® Dictionary of the English Language, 4th Edition
- intransitive v. To emit small bubbles of gas, as a carbonated or fermenting liquid.
- intransitive v. To escape from a liquid as bubbles; bubble up.
- intransitive v. To show high spirits or animation.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. to emit small bubbles of dissolved gas; to froth or fizz
- v. to escape from solution in a liquid in the form of bubbles
- v. to show high spirits
from the GNU version of the Collaborative International Dictionary of English
- intransitive v. To be in a state of natural ebullition; to bubble and hiss, as fermenting liquors, or any fluid, when some part escapes in a gaseous form.
- intransitive v. To exhibit, in lively natural expression, feelings that can not be repressed or concealed.
from The Century Dictionary and Cyclopedia
- To be in a state of natural ebullition, like liquor when gently boiling; bubble and hiss, as fermenting liquors or any fluid when some part escapes in a gaseous form; work, as new wine.
- Figuratively, to show signs of excitement; exhibit feelings which cannot be suppressed: as, to effervesce with joy.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. become bubbly or frothy or foaming
Latin effervēscere : ex-, up, out; see ex- + fervēscere, to start boiling, inchoative of fervēre, to boil; see bhreu- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)