Not acidic; lacking acidity or without acid properties.
From Greek ana- (without) or prefix a- (not) plus Latin acidus (sour/acid). The term emerged in chemistry and medicine to describe substances without acidic qualities.
Your stomach is normally acidic to digest food, but if you take antacids, you're making it more anacid—and your digestion can actually slow down, which is why antacids shouldn't be overused!
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