base level

American  

noun

Geology.

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

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base level British  

noun

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

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Etymology

Origin of base level

First recorded in 1870–75

Example Sentences

“Boiled down to the base level, yeah, you kick a ball through the pipes,” said Dicker, 25, whose team plays host Sunday to the Indianapolis Colts.

From Los Angeles Times

“I was at a base level,” he says, “and the creature is born.”

From The Wall Street Journal

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