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Webster 1913 Edition

Jamb

Jamb

,
Noun.
[Prov. E.
jaumb
,
jaum
, F.
jambe
a leg,
jambe de force
a principal rafter. See
Gambol
.]
1.
(Arch)
The vertical side of any opening, as a door or fireplace; hence, less properly, any narrow vertical surface of wall, as the of a chimney-breast or of a pier, as distinguished from its face.
Gwilt.
2.
(Mining)
Any thick mass of rock which prevents miners from following the lode or vein.

Jamb

,
Verb.
T.
See
Jam
,
Verb.
T.
&
I.

Webster 1828 Edition

Jamb

JAMB

,
Noun.
Among the lead miners of Mendip, a thick bed of stone which hinders them when pursuing the veins of ore.

JAMB

,
Noun.
jam.
In architecture, a supporter; the side-piece or post of a door; the side-piece of a fireplace.

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