Nebular hypothesis, an hypothesis to explain the process of formation of the stars and planets, presented in various forms by Kant, Herschel, Laplace, and others. As formed by Laplace, it supposed the matter of the solar system to have existed originally in the form of a vast, diffused, revolving nebula, which, gradually cooling and contracting, threw off, in obedience to mechanical and physical laws, succesive rings of matter, from which subsequently, by the same laws, were produced the several planets, satellites, and other bodies of the system. The phrase may indicate any hypothesis according to which the stars or the bodies of the solar system have been evolved from a widely diffused nebulous form of matter.

(Neb"u*la`ted) a. Clouded with indistinct color markings, as an animal.

(Neb`u*la"tion) n. The condition of being nebulated; also, a clouded, or ill-defined, color mark.

(Neb"ule) n. [Cf. F. nébule. See nebula.] A little cloud; a cloud. [Obs.]

O light without nebule.
Old Ballad.

(||Né`bu`lé" Neb"u*ly) , a. [F. nébulé.] (Her.) Composed of successive short curves supposed to resemble a cloud; — said of a heraldic line by which an ordinary or subordinary may be bounded.

(Neb`u*li*za"tion) n. (Med.) The act or process of nebulizing; atomization.

(Neb"u*lize) v. t. [See Nebula.] To reduce (as a liquid) to a fine spray or vapor; to atomize.

(Neb"u*li`zer) n. An atomizer.

(Neb"u*lose`) a. Nebulous; cloudy. Derham.

(Neb`u*los"i*ty) n. [L. nebulositas: cf. F. nébulosité]

1. The state or quality of being nebulous; cloudiness; haziness; mistiness; nebulousness.

The nebulosity . . . of the mother idiom.
I. Disraeli.

2. (Astron.) (a) The stuff of which a nebula is formed. (b) A nebula.

(Neb"u*lous) a. [L. nebulosus: cf. F. nébuleux. See Nebula.]

1. Cloudy; hazy; misty.

2. (Astron.) Of, pertaining to, or having the appearance of, a nebula; nebular; cloudlike.

Neb"u*lous*ly, adv.Neb"u*lous*ness, n.

Neb-neb to Necrose

(Neb"-neb`) n. Same as Bablh.

(Neb"u*la) n.; pl. Nebulæ [L., mist, cloud; akin to Gr. cloud, mist, G. nebel mist, OHG. nebul, D. nevel, Skr. nabhas cloud, mist. Cf. Nebule.]

1. (Astron.) A faint, cloudlike, self- luminous mass of matter situated beyond the solar system among the stars. True nebulæ are gaseous; but very distant star clusters often appear like them in the telescope.

2. (Med.) (a) A white spot or a slight opacity of the cornea. (b) A cloudy appearance in the urine. [Obs.]

(Neb"u*lar) a. Of or pertaining to nebulæ; of the nature of, or resembling, a nebula.

  By PanEris using Melati.

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