base level

noun

Geology.

1. the lowest level to which running water can erode the land.

base level

noun

1. the lowest level to which a land surface can be eroded by streams, which is, ultimately, sea level

Word History and Origins

Origin of base level¹

First recorded in 1870–75

Example Sentences

Obviously, the goal should be, down the line, providing a base level of care to every American.

From Salon

Gittins said her allergy meant she lived with "a base level of anxiety".

From BBC

State law provides a “base level of transparency” for the public on who lobbyists are and who they represent, said Andrew Cates, a former lobbyist who wrote a guide on state ethics rules.

From Salon

"I think for me, it's accepting that I'm always going to have this stuff there, it's about how I... respond, what steps I take to... remain at base level."

From BBC

On a base level, these two friends make mistakes and are there to help each other clean them up; Helen and Sam just happen to be spies, too.

From Salon