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Wordnet 3.0

VERB (1)

1. become bubbly or frothy or foaming;
- Example: "The boiling soup was frothing"
- Example: "The river was foaming"
- Example: "Sparkling water"
[syn: foam, froth, fizz, effervesce, sparkle, form bubbles]


The Collaborative International Dictionary of English v.0.48:

Effervesce \Ef`fer*vesce"\, v. i. [imp. & p. p. Effervesced; p. pr. & vb. n. Effervescing.] [L. effervescere; ex + fervescere to begin boiling, incho., fr. fervere to boil. See Fervent.] 1. 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. [1913 Webster] 2. To exhibit, in lively natural expression, feelings that can not be repressed or concealed; as, to effervesce with joy or merriment. Effervescence
WordNet (r) 3.0 (2006):

effervesce v 1: become bubbly or frothy or foaming; "The boiling soup was frothing"; "The river was foaming"; "Sparkling water" [syn: foam, froth, fizz, effervesce, sparkle, form bubbles]