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Webster’s Dictionary (1828)

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

6 words match “PYRROL”

PYRROL n.
A nitrogenous base found in coal tar, bone oil, and other distillates of organic substances, and also produced synthetically as a colorless liquid, C4H5N, having on odor like that of chloroform. It is the nucleus and origin of a large number of derivatives. So called because it colors a splinter of wood moistened with…
PYRROLINE n.
A nitrogenous base, C4H7N, obtained as a colorless liquid by the reduction of pyrrol.
AZOLE n.
es of azoles, which may be regarded as derived respectively from furfuran, thiophene, and pyrrol by replacement of the CH group by nitrogen; as, furo-monazole. Names exactly analogous to those for the azines are also used; as, oxazole, diazole, etc.
IODOL n.
A crystallized substance of the composition C4I4NH, technically tetra-iodo-pyrrol, used like iodoform.
PYROCOLL n.
A yellow crystalline substance allied to pyrrol, obtained by the distillation of gelatin.
TETRAZOLE n.
A crystalline acid substance, CH2N4, which may be regarded as pyrrol in which nitrogen atoms replace three CH groups; also, any of various derivatives of the same.