1. infall - Noun
2. infall - Verb
The act or process of falling in.
An incursion; an inroad.
(countable) The area where water, storm runoff, etc., enters a storm drain.
(astronomy, uncountable) 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
(intransitive) To fall in.
(intransitive, astronomy) To undergo infall.
Source: en.wiktionary.orgThe dark component is probably due to the infall of carbonaceous material, whereas the bright component is the original Vesta basaltic soil. Source: Internet
The dust is then replenished by the infall from comets. Source: Internet
The main model for this is a sufficiently massive core that the explosion is insufficient to reverse the infall of the outer layers onto a black hole. Source: Internet