0 present participle of effervesce --
1 If a liquid effervesces, it produces small bubbles. --
This principle of effervescing while releasing other ingredients is the same as has been used by tableted products for children to produce their own carbonated beverages.
He had pioneered treatment with iron and effervescing medicine which engineered a remission, and so prolonged life.
They do not do much; it has not got to an effervescing point, and we want to do more.
