gradual
91graðul — ? gradual, an antiphon sung between the Epistle and the Gospel at the Eucharist, so called because it was sung at the steps of the altar …
92depletion of the ozone — gradual destruction of the ozone layer (region of the stratosphere which contains much of the Earth s atmospheric ozone) …
93downside trend — gradual decline in the stock quotation index …
94dwindling participation — gradual reduction in the number of people involved …
95dwindling production — gradual decrease in production …
96fade out — gradual disappearance; progressive darkening at the end of a scene in a film or television show …
97global warming — gradual increase of the average global temperature …
98phased withdrawal — gradual removal of military forces …
99radioactive decay — gradual reduction in the number of radioactive atoms in material …
100steady decline — gradual decrease that takes time, tendency to decrease …