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lower bound

American

[loh-er] / ˈloʊ ər /

noun

Mathematics.

an element less than or equal to all the elements in a given set.

The numbers 0 and 1 are lower bounds of the set consisting of 1, 2, and 3.

lower bound Scientific

A number that is less than or equal to every number in a given set.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Same-store sales growth is expected in a range from 0.75% decline to 2.5% increase, with the lower bound lifted from a 1.25% decline.

From The Wall Street Journal • Jun. 2, 2026

He predicts that would be at a lower bound range of 2 ½%.

From Barron's • Oct. 27, 2025

Most important, bariatric surgery seems to reset, to a lower bound, the body weight that the brain tries to maintain.

From New York Times • Oct. 31, 2023

Crypto crime hit a record $20.1 billion in 2022, Chainalysis said, calling this a lower bound estimate.

From Reuters • Oct. 23, 2023

Although the estimate has tightened, it is still not possible to report a lower bound for the neutrino’s mass.

From Scientific American • Feb. 21, 2022

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023