thallus
thal·lus
noun \ˈthal-əs\plural thal·li \ˈthal-ˌī, -ˌē\ or thal·lus·es
Definition of THALLUS
: a plant or plantlike body (as of an alga, fungus, or moss) that lacks differentiation into distinct members (as stem, leaves, and roots) and does not grow from an apical point








