An alkaloid which is the active principle of tobacco. It is a colorless, transparent, oily liquid, having an acrid odor, and an acrid burning taste. It is intensely poisonous.
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Alt. of Alkaloidal
Open English WordNet identifies the related term as a broader lexical category for at least one sense.
Causing, or giving rise to, pressure or to an increase of pressure; as, pressor nerve fibers, stimulation of which excites the vasomotor center, thus…
Open English WordNet identifies the related term as a broader lexical category for at least one sense.
Causing constriction of the blood vessels; as, the vasoconstrictor nerves, stimulation of which causes constriction of the blood vessels to which the…
Open English WordNet identifies the related term as a broader lexical category for at least one sense.
An American plant (Nicotiana Tabacum) of the Nightshade family, much used for smoking and chewing, and as snuff. As a medicine, it is narcotic, emeti…
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