The state or quality of being comatose; a medical condition characterized by prolonged unconsciousness.
From comatose + -ity (suffix forming abstract nouns). This -ity ending is common in medical and scientific terminology (acidity, viscosity, density).
Comatosity' shows how one concept can have multiple noun forms in English—we have 'coma,' 'comatousness,' 'comatosity'—but doctors usually stick with just 'coma' because it's simpler and everyone understands it.
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