thallus

2 ENTRIES FOUND:

thal·lus

noun \ˈtha-ləs\
plural thal·li \ˈtha-ˌlī, -ˌlē\ or thal·lus·es

Definition of THALLUS

:  a plant body that lacks differentiation into distinct parts (as stem, leaves, and roots), does not grow from an apical point, and is characteristic of organisms formerly classified as thallophytes

Origin of THALLUS

New Latin, from Greek thallos, from thallein to sprout; akin to Armenian dalar green, fresh, Albanian dal I come forth
First Known Use: 1829

thal·lus

noun \ˈthal-əs\   (Medical Dictionary)
plural thal·li \ˈthal-ˌī, -ˌē\ or thal·lus·es

Medical 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

thallus

noun    (Concise Encyclopedia)

Plant body of algae, fungi (see fungus), and similar simple, plantlike organisms. Composed of filaments or plates of cells, a thallus ranges in size from a single-celled structure to a complex treelike form. The photosynthetic and supportive cells tend to be organized linearly, but a thallus lacks such differentiated specialized structures as stem, leaves, and conducting tissue. Most thallus plants are currently classified as complex protists.

Browse

Next Word in the Dictionary: thalposis
Previous Word in the Dictionary: thallous
All Words Near: thallus

Seen & Heard

What made you want to look up thallus? Please tell us where you read or heard it (including the quote, if possible).