true level

American  

noun

1. an imaginary surface everywhere perpendicular to the plumb line, or line of gravity.

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true level British  

noun

1. a hypothetical surface that is perpendicular at every point to the plumb line, such as the mean sea level or geoid

   a still liquid surface is at true level

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Example Sentences

But MPs on the committee said they suspect the true level of fraud to be much higher.

From BBC

“The true level of demand was a good bit lower than what they were trying to sell,” Haig said.

From The Wall Street Journal

Future research that tracks total chemical exposure across the body will be needed to determine the true level of risk.

From Science Daily

A lack of resources and conversations from doctors is, in part, driven by a lack of required training on managing menopause symptoms and true level of standardized care in obstetrics.

From Salon

"It's time that the public and parents understand the true level of harm posed by these 'products' and it's time that young users have the tools to report and suppress online abuse," he said in written remarks made available before the hearing.

From Reuters