Roche alum

·- A kind of alum occuring in small fragments;

— so called from Rocca, in Syria, whence alum is said to have been obtained;

— also called rock alum.

Roche
·noun <<Rock>>. ...

Webster's Dictionary of the English Language
alum
alum (hal-), n., or alus, i, f., a plant. I Comfrey : Symphytum officinale, Linn.; Plin. 27, 6, ...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
Alum
·vt To steep in, or otherwise impregnate with, a solution of alum; to treat with alum. II. Alum ·no...

Webster's Dictionary of the English Language
Roche moutonnee
·- ·see <<Sheepback>>. ...

Webster's Dictionary of the English Language
Alum root
·- A North American herb (Heuchera Americana) of the Saxifrage family, whose root has astringent pro...

Webster's Dictionary of the English Language
Alum schist
·- ·Alt. of Alum shale. ...

Webster's Dictionary of the English Language
Alum shale
·- A variety of shale or clay slate, containing iron pyrites, the decomposition of which leads to th...

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Alum stone
·- A subsulphate of alumina and potash; alunite. ...

Webster's Dictionary of the English Language
Tripe-de-roche
·noun ·same·as Rock tripe, under <<Rock>>. ...

Webster's Dictionary of the English Language