Definition of nebulas Nebulas

We found 3 definitions of nebulas from 2 different sources.

What does nebulas mean?

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Noun Plural: nebulae
nebula - an immense cloud of gas (mainly hydrogen) and dust in interstellar space
		cloud a visible mass of water or ice particles suspended at a considerable altitude
		diffuse nebula, gaseous nebula a cluster of stars within an intricate cloud of gas and dust
nebula - (pathology) a faint cloudy spot on the cornea
		dapple, speckle, fleck, maculation, patch, spot a piece of cloth used as decoration or to mend or cover a hole
		pathology the branch of medical science that studies the causes and nature and effects of diseases
nebula - cloudiness of the urine
		symptom anything that accompanies X and is regarded as an indication of X's existence
nebula - a medicinal liquid preparation intended for use in an atomizer

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nebula (Noun)
A cloud in outer space consisting of gas or dust e. g. a cloud formed after a star explodes.
nebula (Noun)
A white spot or slight opacity of the cornea.
nebula (Noun)
A cloudy appearance in the urine.

nebula (n.)
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.
nebula (n.)
A white spot or a slight opacity of the cornea.
nebula (n.)
A cloudy appearance in the urine.

nebula
neb′ū-la, n. a little cloud: a faint, misty appearance in the heavens produced either by a group of stars too distant to be seen singly, or by diffused gaseous matter:—pl. Neb′ulæ.—adjs. Neb′ular, pertaining to nebulæ: like nebulæ; Nebulé (neb-ū-lā′), curved in and out (her.); Neb′ulose, Neb′ulous, misty, hazy, vague: relating to, or having the appearance of, a nebula.—ns. Nebulos′ity, Neb′ulousness.—Nebular hypothesis, the theory of Laplace and Sir W. Herschel that nebulæ form the earliest stage in the formation of stars and planets. [L.; Gr. nephelē, cloud, mist.]

nebula
An old term for a cluster of stars looking like a cloudy spot till separated by telescopic power; but the term is also now correctly applied to masses of nebulous matter only.

A nebula (one nebula, several nebulae or nebulæ) is an interstellar cloud of dust.

Origin.

A nebula is usually made up of hydrogen gas and plasma. It is the first stage of a star's cycle.