Definition of Herard. Meaning of Herard. Synonyms of Herard
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Definition of Herard
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Sherardia arvensis Madder Mad"der, n. [OE. mader, AS. m[ae]dere; akin to Icel.
ma?ra.] (Bot.)
A plant of the Rubia (R. tinctorum). The root is much
used in dyeing red, and formerly was used in medicine. It is
cultivated in France and Holland. See Rubiaceous.
Note: Madder is sometimes used in forming pigments, as lakes,
etc., which receive their names from their colors; as.
madder yellow.
Field madder, an annual European weed (Sherardia
arvensis) resembling madder.
Indian madder, the East Indian Rubia cordifolia, used in
the East for dyeing; -- called also munjeet.
Wild madder, Rubia peregrina of Europe; also the Galium
Mollugo, a kind of bedstraw.
Sherardize Sherardize Sher"ard*ize, v. t. [From Sherard Cowper-Coles, the
inventor.] (Metal.)
To subject to the process of vapor galvanizing (which see,
below).
Sherardizing Vapor galvanizing Va"por gal"va*niz`ing (Metal.)
A process for coating metal (usually iron or steel) surfaces
with zinc by exposing them to the vapor of zinc instead of,
as in ordinary galvanizing, to molten zinc; -- called also
Sherardizing. Vapor galvanizing is accomplished by heating
the articles to be galvanized together with zinc dust in an
air tight receptacle to a temperature of about 600[deg] F.,
which is 188[deg] below the melting point of zinc, or by
exposing the articles to vapor from molten zinc in a separate
receptacle, using hydrogen or other reducing gas to prevent
oxidation.
