Category:Nebulosity

Neb`u*los"i*ty, n. Etym: [l. nebulositas: cf. F. nébulosité]

1. The state or quality of being nebulous; cloudiness; hazeness; Mistiness; nebulousness. The nebulosity ... of the mother idiom. I. Disraeli.

2. (astron.) (a) the stuff of which a nebula is formed. (b) a nebula.