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Iron Iron is a trace mineral needed to make hemoglobin, the protein needed to carry oxygen throughout the body. Hemoglobin gives red blood cells their color, and stores most of the body s iron supply.Iron is also stored in muscle tissue, and helps supply the muscles with the oxygen needed to make them contract.Although iron is a trace mineral, it is extremely important, because a deficiency in this nutrient leads to a shortage of red blood cells, a condition known as anemia.Anemic individuals do not have an adequate supply of oxygen in their body, which leaves them tired, pale, and short of breath.ron is also stored in muscle tissue, and helps supply the muscles with the oxygen needed to make them contract. Although iron is a trace mineral, it is extremely important, because a deficiency in this nutrient leads to a shortage of red blood cells, a condition known as anemia.
The noun IRON ORE has 1 sense: 1  1. an ore from which iron can be extracted. 2  Meaning: 3  An ore from which iron can be extracted. 4  Classified under: 5  Nouns denoting substances. 6  Hypernyms (iron ore is a kind of...): 7  ore (a mineral that contains metal that is valuable enough to be mined) 8  Meronyms (substance of iron ore): atomic number 26; Fe; iron (a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood) Hyponyms (each of the following is a kind of iron ore): goethite; gothite (a red or yellow or brown mineral; an oxide of iron that is a common constituent of rust) chamosite (a greenish grey or black silicate of iron and aluminum) taconite (a variety of chert containing magnetite and hematite; mined as a low-grade iron ore)