See Also: Niagara period(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Time period principle or accounting period assumption(finance)
T-period holding-period return(money)
T-period holding-period return(finance)
Niagara(dictionary)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
ALLIANCE NIAGARA(finance)
Niagara River(encyclopedia)
First Niagara Bank(finance)

Niagara period (medicine)


niagara period
<geology> A subdivision or the American Upper Silurian system, embracing the Medina, Clinton, and Niagara epoch. The rocks of the Niagara epoch, mostly limestones, are extensively distributed, and at Niagara Falls consist of about eighty feet of shale supporting a greater thickness of limestone, which is gradually undermined by the removal of the shale. See Chart of Geology.

Source: Websters Dictionary