diameter

Perhaps more importantly, the inserter is thinner—a 3.7 mm diameter to Paragard’s 4.75—with a rounded tip designed to make pushing the tube through the nerve-dense cervix and into the uterus less painful.

From Slate ● Oct. 27, 2026

For the Magic 8 Ball, it was figuring out how the answer block could float without developing air bubbles, since his version is about an inch in diameter.

From The Wall Street Journal ● Oct. 1, 2026

Upon arrival, the Fire Department located five separate spot fires, all about five feet in diameter.

From Los Angeles Times ● Sep. 12, 2026

Roman has a 7.9-foot primary mirror, the same diameter as the Hubble Space Telescope's, along with two major scientific instruments.

From Science Daily ● Aug. 28, 2026

She opened the bag and brought out a thin bronze disk the diameter of a donut.

From "The Mark of Athena" by Rick Riordan

Which is to say, Porsche invented an entirely new flat-six—different bore diameters and everything—just to clear 11 centimeters under the engine cover.

From The Wall Street Journal ● Oct. 30, 2025

Astronomers these days are really interested in sub-Neptune planets, meaning those with diameters larger than Earth but smaller than Neptune.

From Salon ● May 31, 2025

PM 2.5 refers to the level of tiny, hazardous particles - with diameters that are 2.5 micrometres or smaller - that can enter bloodstreams though the lungs.

From BBC ● Mar. 6, 2024

They have up to 24 arms and can grow to diameters of more than three feet.

From New York Times ● Mar. 6, 2024

Holes extending nearly through the lower plank and of various sizes to accommodate vials of different diameters were bored as closely together as the wood justified without splitting or breaking.

From Directions for Collecting and Preserving Insects by C. V. Riley