chalk·​brood ˈchȯk-ˌbrüd How to pronounce chalkbrood (audio)
: a disease of honeybees that is fatal to developing larvae and is caused by a fungus (Ascophaera apis)

Note: Larva affected with chalkbrood become covered by a white, woolly growth and then harden to a chalky white to grayish-black mass.

Examples of chalkbrood in a Sentence

Recent Examples on the Web In this new study, the authors looked at whether propolis helped stop a fungal infection called chalkbrood that kills larvae. Sarah Zhang, Discover Magazine, 2 Apr. 2012 And when colonies got infected with chalkbrood, bees went looking for resins more often. Sarah Zhang, Discover Magazine, 2 Apr. 2012

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'chalkbrood.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1974, in the meaning defined above

Time Traveler
The first known use of chalkbrood was in 1974

Dictionary Entries Near chalkbrood

Cite this Entry

“Chalkbrood.” Dictionary, Merriam-Webster, Accessed 1 Mar. 2024.

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