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mudlump

American

[muhd-luhmp] / ˈmʌdˌlʌmp /

noun

a small, short-lived island of clay or silt that forms within a river delta.

Etymology

Origin of mudlump

An Americanism dating back to 1865–70

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

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.