Category: A
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Arteriola macularis inferior
The inferior macular arteriole, which supplies the macula retinae of the eye.
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Arteriola
A small artery; an arteriole.
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Arterectomy
Excision of an artery or arteries.
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Artemisia annua
A Chinese herb used as a source of the antimalarial drug, artesunate.
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Arsine
A poisonous gas formed from the interaction of arsenic and acid; it may be used as an agent of chemical warfare.
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Arsenicophagy
Habitual eating of arsenic.
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Arsenicalism
Chronic arsenic poisoning.
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Arsenical
To or containing arsenic.
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Arrhinia
Congenital absence of the nose.
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Arrhenius equation
A mathematical formula that specifies the influence of temperature on the rate of a chemical reaction. In general, a higher temperature produces a faster reaction.