progradation

Noun

The growth of a river delta farther out into the sea over time, as it gains more sediment

Origin / Etymology

Formed as pro- + gradation, after prograde.

Scrabble Score: 16

progradation: not valid in Scrabble (US) TWL Dictionary
progradation: not valid in Scrabble (MW) Merriam-Webster Dictionary
progradation: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 19

progradation: valid Words With Friends Word