nebulosity

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neb·u·los·i·ty

N0043500 (nĕb′yə-lŏs′ĭ-tē)n. pl. neb·u·los·i·ties 1. The quality or condition of being nebulous.2. Astronomy a. A nebula or a nebulalike object.b. A mass of material constituting a nebula.

nebulosity

(ˌnɛbjʊˈlɒsɪtɪ) n, pl -ties1. the state or quality of being nebulous2. (Astronomy) astronomy a nebula

neb•u•los•i•ty

(ˌnɛb yəˈlɒs ɪ ti)

n., pl. -ties. 1. cloudy or cloudlike matter. 2. a nebulous form, shape, or mass. 3. the state or condition of being nebulous. [1755–65; < Late Latin nebulōsitās]