smoother
noun1
One who, or that which, smooths.
2
In glass-cutting, an abrading-wheel for polishing the aces of the grooves cut by another wheel.
3
A hand plane set to cut thin shavings, to create a polished surface.
4
Obsolete A flatterer.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.