from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A fossil plant from the Silurian age
from the GNU version of the Collaborative International Dictionary of English
- n. A fossil plant which is found in the lowest beds of the Silurian age.
from The Century Dictionary and Cyclopedia
- n. In paleontology, a fossil plant found in eozoic rocks.
Ancient Greek ἠώς ("early in the day") + -phyte (Wiktionary)