from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of a large number of plants that consist of a thallus only, with no flower, leaves etc.
from the GNU version of the Collaborative International Dictionary of English
- n. One of a large class or division of the vegetable kingdom, which includes those flowerless plants, such as fungi, algæ, and lichens, that consist of a thallus only, composed of cellular tissue, or of a congeries of cells, or even of separate cells, and never show a distinction into root, stem, and leaf.
from The Century Dictionary and Cyclopedia
- n. In botany, same as thallophyte.
thallus + -gen (Wiktionary)