1 PHYS, SPOR, AUTO, ETC noun increase in speedluasghéarú masc c m uwith steady accelerationle luasghéarú seastahe has terrific accelerationtá sé go hiontach ag géarú luaisacceleration zonezón luasghéaraithe2 noun increase in rategéarú masc c m uluathú mascthe acceleration in the divorce ratean géarú ar an ráta colscartha