v. i.
a. [ L. effervescences, p. pr. of effervescere: cf. F. effervescent. ] Gently boiling or bubbling, by means of the disengagement of gas [ 1913 Webster ]
a. Capable of effervescing. [ 1913 Webster ]
a. Tending to produce effervescence. “An effervescive force.” Hickok. [ 1913 Webster ]