See Also: pyrrol(medicine)
pyrrol blue(medicine)
pyrrol cell(medicine)

unpenetrated (iou) and pyrrol (medicine)


unpenetrated (iou)



unpenetrated adjective. L18.
[from UN-1 + penetrated pa. pple of PENETRATE.]
Not penetrated.
unpenetrable adjective LME.
unpenetrating adjective M18.

pyrrol (medicine)


pyrrol
<chemistry> A nitrogenous base found in coal tar, bone oil, and Other distillates of organic substances, and also produced synthetically as a colourless liquid, C4H5N, having on odour like that of chloroform. It is the nucleus and origin of a large number of Derivatives. So called because it colours a splinter of wood moistened with hydrochloric acid a deep red.

Origin: Gr. Flame-coloured (from fire) + L. Oleum oil.

Source: Websters Dictionary