effervescing

/ˌɛfərˈvɛsɪŋ/
noun
  1. The action or process of producing bubbles of gas.
    • The effervescing of the tablet in water took about a minute.
    • You could hear the effervescing from across the room.
    • The constant effervescing of the spring gave the water a unique taste.
adjective
  1. Producing bubbles of gas; fizzing.
    • The effervescing soda made a pleasant hissing sound.
    • I watched the effervescing mixture bubble up in the test tube.
    • The effervescing liquid overflowed from the glass.