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) \

Definition of haustorium

: 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).

First Known Use of haustorium

1875, in the meaning defined above

History and Etymology for haustorium

New Latin, from Latin haurire

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The first known use of haustorium was in 1875

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Dictionary Entries Near haustorium

haustorial

haustorium

haustus

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Cite this Entry

“Haustorium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/haustorium. Accessed 5 Aug. 2021.

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More Definitions for haustorium

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) \

Medical Definition of haustorium

: a food-absorbing outgrowth of a plant organ (as a hypha or stem)

Other Words from haustorium

haustorial \ -​ē-​əl How to pronounce haustorium (audio) \ adjective

More from Merriam-Webster on haustorium

Britannica.com: Encyclopedia article about haustorium

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