Definition: Anhydremia is a condition where the body does not produce enough oxygen due to anemia or a decrease in red blood cells. It can be caused by several factors such as malnourishment, poor nutrition, iron deficiency, or cancer. The term is primarily used in the Bible for describing someone who lacks sufficient oxygen and cannot breathe effectively. The word comes from the Greek ἄν ὀδύμη (anōdēmi), which means "not enough," as well as the Hebrew noun anhidra, meaning "insufficient" or "deficient."