infall

From in- +‎ fall.

infall (countable and uncountable, plural infalls)

1. The act or process of falling in.
2. An incursion; an inroad.

   (Can we find and add a quotation of Carlyle to this entry?)

3. (countable) The area where water, storm runoff, etc., enters a storm drain.
4. (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

infall (third-person singular simple present infalls, present participle infalling, simple past infell, past participle infallen)

1. (intransitive) To fall in.
2. (intransitive, astronomy) To undergo infall.
   • 1997, Bo Reipurth, Claude Bertout, Herbig-Haro flows and the birth of low mass stars:

     After this time the beam mass loss rate decreases since once the expansion wave radius is larger than the beam, material initially outside the beam starts to infall and compensate for material which is collapsing at centre of the core [...]

• infalling

• Urban Exploration Resource

• Fallin, fall in, fallin'

From falla in, to realize.

• Audio

  (file)

infall n

1. a sudden idea, a whim