plumbago


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plumbago

(plŭm'bā`gō): see graphitegraphite
, an allotropic form of carbon, known also as plumbago and black lead. It is dark gray or black, crystalline (often in the form of slippery scales), greasy, and soft, with a metallic luster.
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plumbago

[‚pləm′bā·gō]
(mineralogy)

graphite, plumbago

One of the forms under which carbon occurs in nature; electrically conductive; in powdered form, used as a lubricant.
References in periodicals archive ?
Quantitative investigation on the dynamics of plumbagin in Plumbago europea L.
Effect of Plumbago Zeylinica extract and certain curing agents on multidrug resistance bacteria of clinical origin.
My favorites are milkweed and blue porterweeds, a few pentas, a couple of larger plants like plumbago and clerodendrum.
For the sun, sky blue cape plumbago and orange or yellow trumpet vines (Tecoma species) are also marginal but worth the risk.
In 1973 John became a partner in Plumbago Mining Corporation when he acquired the interests of George Hartman, one of the original partners.
Among the colorful specimens now on display on the property are daylilies, snowball trees, hydrangea, plumbago, Peruvian lilies, verbena, hibiscus, butterfly bushes, phlox, cannas, white and orange ginger lilies, dianthus, and daffodils.
Solanaceae) (Jazmin paraguayo), Plumbago capensis Thunb.
From England, growing in the gardens of our London apartment, I snipped from Ceratostigma willmottianum - a member of the plumbago family - several cuttings in the summer of 2007.
chelonei Plumbago zeylanica) Erybraedin A or Vancomycin Vacomycin-resistant eryzerin C enterococci (VRE) and isolated MRSA S.
He must be taking in the sumptuous table, the tantalising smell of coffee, the posy of pale blue plumbago, rosemary, and dark-eyed daisy, and the back of the boy whose eyes are fixed on the milky loam frothing above the rim of the coffee cup.