[ 'prəʊgreɪd ]
■ adjective
1》 Astronomy proceeding from west to east; direct. The opposite of retrograde .
2》 Geology (of metamorphism) resulting from an increase in temperature or pressure.
■ verb Geology (of a coastline) advance towards the sea as a result of accumulation of sediment.
Derivatives
progradation noun
Origin
1960s: from pro- 1 + retrograde .