haustorium

noun

haus·​to·​ri·​um hȯ-ˈstȯr-ē-əm How to pronounce haustorium (audio)
plural haustoria hȯ-ˈstȯr-ē-ə How to pronounce haustorium (audio)
: a nutrient-absorbing outgrowth of a fungus or parasitic plant that penetrates the tissues of the host organism

Note: Haustoria arise from the hyphae in fungi and from the roots or stems of parasitic plants (such as dodder and mistletoe).

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Word History

Etymology

New Latin, from Latin haurire

First Known Use

1875, in the meaning defined above

Time Traveler
The first known use of haustorium was in 1875

Dictionary Entries Near haustorium

Cite this Entry

“Haustorium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/haustorium. Accessed 27 Sep. 2022.

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Medical Definition

haustorium

noun

haus·​to·​ri·​um hȯ-ˈstōr-ē-əm, -ˈstȯr- How to pronounce haustorium (audio)
plural haustoria -ē-ə How to pronounce haustorium (audio)
: a food-absorbing outgrowth of a plant organ (as a hypha or stem)

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