appressorium


ap·pres·so·ri·um

A5402950 (ăp′rə-sôr′ē-əm)n. pl. ap·pres·so·ri·a (-sôr′ē-ə) The flattened tip of a hypha in various species of parasitic fungi, from which a filament emerges that penetrates the host's tissues.
[New Latin appressōrium, from Latin appressus, past participle of apprimere, to press down; see appressed.]

appressorium

(ˌæprɛˈsɔːrɪəm) n, pl -ria (-rɪə) (Botany) botany a flattened hypha of a parasitic fungus that penetrates the host tissues[from New Latin, from Latin appressus; see appressed]