\Crom"lech\ (kr[o^]m"l[e^]k), n. [W. cromlech; crom
bending or bent, concave + llech a flat stone; akin to Ir.
cromleac.] (Arch[ae]ol.)
A monument of rough stones composed of one or more large ones
supported in a horizontal position upon others. They are
found chiefly in countries inhabited by the ancient Celts,
and are of a period anterior to the introduction of
Christianity into these countries.