from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Anything used to flatten something
from The Century Dictionary and Cyclopedia
- n. Same as flatter.
- n. Specifically A workman in a glass-works who flattens the softened and split cylinders to form them into sheets, after they are laid upon the flattening-stone of the flattening-furnace.
From flatten + -er (Wiktionary)