hemoglobin

Definition

The iron-containing protein in red blood cells that binds oxygen in the lungs and transports it throughout the body—basically your blood's delivery service. It consists of globulin protein wrapped around haem groups with iron at their centers, turning oxygen-rich blood bright red and oxygen-poor blood darker. When hemoglobin levels drop, you get anemia; when they're fine, you get to live another day without thinking about cellular respiration.

Example Usage

Her hemoglobin levels were so low after the accident that she needed an immediate transfusion before surgery could even be considered.

Source: Medical terminology via Dictionary API

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pb&j

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