water mold

noun

: any of various fungi of water or moist soils

Examples of water mold in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
This is a water mold that spreads below ground by root contacts and swimming spores in soil water. — oregonlive, 26 Feb. 2022 When grown in a field, pumpkins are among fields of fungi, bacteria, water molds and soil-dwelling animals. — Zach Bradshaw, The Arizona Republic, 18 Oct. 2024 The pathogen, taking the form of a fungus-like microorganism (oomycete/water mold), has devastated potato and tomato plants throughout history. — Jack Knudson, Discover Magazine, 24 Jan. 2025 Plant roots can be infected by water molds (Phytophthora and Pythium) or fungi like Rhizoctonia and Fusarium. — Brandee Gruener, Southern Living, 10 May 2025 Excess water in the root zone is also an invitation to pathogenic organisms, especially water molds, Phytophthora notable among them. — Joshua Siskin, Oc Register, 13 Sep. 2025

Word History

First Known Use

1882, in the meaning defined above

Time Traveler
The first known use of water mold was in 1882

Rhymes for water mold

See All Rhymes for water mold

Browse Nearby Words

water moccasin
water mold
water mole
See all Nearby Words

Cite this Entry

“Water mold.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/water%20mold. Accessed 7 Jul. 2026.

Copy Citation

More from Merriam-Webster on water mold

Britannica.com: Encyclopedia article about water mold

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See More

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?

Commonly Misspelled Words

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)
See More

Popular in Wordplay

See More

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List

One-Word Oxymorons: Bittersweet, Spendthrift, and More

Ten Words Ending with a Silent ‘T’

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

Is that lie 'bald-faced' or 'bold-faced'?

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
hangman letters and game
Hangman Lightning Round Figure out which word fits in the blanks.
See All