prograde

pro grade |ˈprōˈgrād ˌproʊˈɡreɪd | ▶adjective 1 Astronomy (of planetary motion ) proceeding from west to east; direct. The opposite of retrograde. 2 Geology (of a metamorphic change ) resulting from an increase in temperature or pressure or both. Compare with retrograde. ▶verb [ no obj. ] Geology (of a beach or coastline ) advance toward the sea as a result of the accumulation of waterborne sediment. DERIVATIVES pro gra da tion |ˌprōˌgrāˈdāSHən, ˌprōgrə - |noun ORIGIN early 20th cent. (as a verb ): from pro- 1 ‘forward ’ + retrograde .

prograde

prograde |ˈprəʊgreɪd | ▶adjective 1 Astronomy (of planetary motion ) proceeding from west to east; direct. The opposite of retrograde. 2 Geology (of a metamorphic change ) resulting from an increase in temperature or pressure. ▶verb [ no obj. ] Geology (of a coastline ) advance towards the sea as a result of the accumulation of waterborne sediment. DERIVATIVES progradation noun ORIGIN early 20th cent. (as a verb ): from pro- 1 ‘forwards ’ + retrograde .