a rootlike structure of certain fungi, such as the honey fungus Armillaria mellea, consisting of a dense mass of hyphae
rhizomorph in American English
(ˈraizəˌmɔrf)
noun
Biology
a cordlike fusion of hyphae that leads certain fungi across various substrates like a root through soil
Word origin
[1840–50; rhizo- + -morph]This word is first recorded in the period 1840–50. Other words that entered Englishat around the same time include: bypass, creationism, layout, sensationalism, set piece-morph is a combining form meaning “form, structure,” of the kind specified by the initialelement. Other words that use the affix -morph include: biomorph, endomorph, paramorph, pseudomorph, ramamorph