Grows by accumulation — races etc (anag)

Usage examples of accretes.

Almost all of it's picayune and, over time, as it accretes, unpleasant.

He believes that the soul, if real, accretes in the same manner as a coral reef grows from the deposit of countless millions of calcareous skeletons secreted by marine polyps.

The mold-symbiote accretes very slowly, once it's buried its substrate and absorbed the easily available water and nutrient.

It's that sense of wizardry, that dionysian quality, the spontaneous way it accretes, the way it spreads on the wind all over the place, much like bread mold.

Hawking demonstrated that if an asteroid falls into a black hole, or if some of the surface gas of a nearby star accretes onto the black hole, or if two black holes collide and combine—in any of these processes and all others as well, the total area of the event horizon of a black hole always increases.