Murchison

American

[mur-chi-suhn] / ˈmɜr tʃɪ sən /

noun

an intermittent river in W Australia, flowing SW to the Indian Ocean. 440 miles (708 km) long.

Murchison British

/ ˈmɜːtʃɪsən /

noun

Sir Roderick Impey. 1792–1871, Scottish geologist: played a major role in establishing parts of the geological time scale, esp the Silurian, Permian, and Devonian periods

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

Rangers guard a mountain of confiscated snares in Murchison Falls National Park, Uganda.

From BBC • Mar. 25, 2026

The amino acids in Murchison appear to have formed in environments that included liquid water and moderate temperatures.

From Science Daily • Feb. 12, 2026

The team focused on anorthosites that formed about 3.7 billion years ago and were collected from the Murchison region of Western Australia.

From Science Daily • Jan. 10, 2026

Young, rookie outside linebacker Josaiah Stewart, linebacker Nate Landman, lineman Larrell Murchison and safety Quentin Lake contributed to seven sacks on Lawrence.

From Los Angeles Times • Oct. 19, 2025

The issue arose when the Reverend Adam Sedgwick of Cambridge claimed for the Cambrian period a layer of rock that Roderick Murchison believed belonged rightly to the Silurian.

From "A Short History of Nearly Everything" by Bill Bryson

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