infall

Meanings

1. The act or process of falling in.
2. An incursion; an inroad.
3. The area where water, storm runoff, etc., enters a storm drain.
4. Movement towards a massive astronomical body under the influence of gravity; especially the process whereby gas falls towards a neutron star or black hole at high speed, forming a plasma

1. To fall in.
2. To undergo infall.

Etymology

From in- + fall.