nested

American  

[nes-tid] / ˈnɛs tɪd /

adjective

Mathematics.

1. (of an ordered collection of sets or intervals) having the property that each set is contained in the preceding set and the length or diameter of the sets approaches zero as the number of sets tends to infinity.

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Etymology

Origin of nested

First recorded in 1720–30; nest + -ed ³

Example Sentences

The charity leading the breeding project said the pair's arrival was "brilliant news" and hopes a second pair who nested for the first time in 2025 will also return.

From BBC • Mar. 26, 2026

Shortly after, a pair of eagles nested on the north side, bolstering Big Bear Valley’s role as vital habitat for the birds of prey.

From Los Angeles Times • Feb. 12, 2026

The Palisades is nested against a mountain range filled with dried-out flora, making it an “extreme” fire risk, according to an official state threat assessment.

From The Wall Street Journal • Dec. 19, 2025

"They preserve microstructural and geochemical signals that tell us not only what kinds of animals laid them, but also where they nested and how they bred," he says.

From Science Daily • Nov. 15, 2025

Once, a pair of loons nested in the pond in the woods behind their house.

From "If I Stay" by Gayle Forman

Related Words

• fixed
• ingrained
• installed
• planted