Ef·fer·vesce v. i. [imp. & p. p. Effervesced p. pr. & vb. n. Effervescing ]
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.
2. To exhibit, in lively natural expression, feelings that can not be repressed or concealed; as, to effervesce with joy or merriment.
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