appressorium
noun
ap·pres·so·ri·um
ˌa-pre-ˈsȯr-ē-əm 
plural appressoria
ˌa-pre-ˈsȯr-ē-ə
: the flattened thickened tip of a hyphal branch by which some parasitic fungi attach to and penetrate their host
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“Appressorium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/appressorium. Accessed 21 Dec. 2024.
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