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COMA, noun Lethargy; dozing; a preternatural propensity to sleep; a kind of stupor of diseased persons.

COMA, noun

1. In botany, a species of bracte, terminating the stem of a plant, in a tuft or bush; as in crown-imperial.

2. In astronomy, hairiness; the hairy appearance that surrounds a comet, when the earth or the spectator is between the comet and the sun.