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Webster’s Dictionary (1828)

98,828 entries. Headwords are matched first, then definition text.

15 words match “PLUMBAGO”

PLUMBAGO n. 2 definitions

Same as Graphite.

ANTIATTRITION n.

e effects of friction, esp. a compound lubricant for machinery, etc., often consisting of plumbago, with some greasy material; antifriction grease.

Plumbago; graphite.It leaves a blackish mark somewhat like lead. See Graphite.

An implement for drawing, made of clay and plumbago, or of some preparation of chalk, usually sold in small prisms or cylinders. Let no day pass over you . . . without giving some strokes of the pencil or the crayon. Dryden.

s (improperly called lead pencils), for crucibles, and as a lubricator, etc. Often called plumbago or black lead. Graphite battery (Elec.), a voltaic battery consisting of zinc and carbon in sulphuric acid, or other exciting liquid.

GRAPHITOID; GRAPHITOIDAL a.

Resembling graphite or plumbago.

in the iodides. When isolated it is in the form of dark gray metallic scales, resembling plumbago, soft but brittle, and emitting a chlorinelike odor. Symbol I. Atomic weight 126.5. If heated, iodine volatilizes in beautiful violet vapors.

A small cylinder of black lead or plumbago, used in pencils. Black lead, graphite or plumbago, ; -- so called from its leadlike appearance and streak. [Colloq.] -- Coasting lead, a sounding lead intermediate in weight between a hand lead and deep-sea lead. -- Deep-sea lead, the heaviest of sounding leads, used in wate…

A genus of maritime herbs (Plumbago). P. Europæa has lead- colored spots on the leaves, and nearly lead-colored flowers.

That which lubricates; specifically, a substance, as oil, grease, plumbago, etc., used for reducing the friction of the working parts of machinery.

LUSTER; LUSTRE n.

A substance which imparts luster to a surface, as plumbago and some of the glazes.

A crystalline substance said to be found in the root of a certain plant of the Leadwort (Plumbago) family.

PLUMBAGINEOUS a.

Pertaining to natural order (Plumbagineæ) of gamopetalous herbs, of which plumbago is the type. The order includes also the marsh rosemary, the thrift, and a few other genera.

PLUMBAGINOUS a.

Resembling plumbago; consisting of, or containing, plumbago; as, a plumbaginous slate.

Plumbago, or black lead.