Nebula

Webster's Dictionary of the English Language

·noun A cloudy appearance in the urine.

II. Nebula ·noun A white spot or a slight opacity of the cornea.

III. Nebula ·noun A faint, cloudlike, self-luminous mass of matter situated beyond the solar system among the stars. True nebulae are gaseous; but very distant star clusters often appear like them in the telescope.

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