define hemoglobin? ?????!?!????
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noun
noun: hemoglobin
a red substance in the blood that carries the gas we need to live (oxygen) and contains iron
रक्त में उपलब्ध लाल कण जिनमें लोहा होता है और जो ऑक्सीजन का वहन करते हैं; हीमोग्लोबिन
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a red protein responsible for transporting oxygen in the blood of vertebrates. Its molecule comprises four subunits, each containing an iron atom bound to a haem group.
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