[化] 琢石; 方石

[ noun ]
a rectangular block of hewn stone used for building purposes
<noun.artifact>

Ashlar \Ash"lar\, Ashler \Ash"ler\, n. [OE. ascheler, achiler,
OF. aiseler, fr. aiselle, dim. of ais plank, fr. L. axis,
assis, plank, axle. See {Axle}.]
1. (Masonry)
(a) Hewn or squared stone; also, masonry made of squared
or hewn stone.

Rough ashlar, a block of freestone as brought
from the quarry. When hammer-dressed it is known
as common ashlar. --Knight.
(b) In the United States especially, a thin facing of
squared and dressed stone upon a wall of rubble or
brick. --Knight.