1. Having the quality of spirit; tenuous in substance, and having active powers or properties; ethereal; immaterial; spiritual; pure.

2. Containing, or of the nature of, alcoholic (esp. distilled) spirit; consisting of refined spirit; alcoholic; ardent; as, spirituous liquors.

3. Lively; gay; vivid; airy. [Obs.] Sir H. Wotton. The mind of man is of that spirituous, stirring nature, that it is perpetually at work. South.

SPIRITUOUSNESS
Spir"it*u*ous*ness, n.

Defn: The quality or state of being spirituous. [R.] Boyle.

SPIRKETING
Spirk"et*ing, n. (Naut.)

Defn: The planking from the waterways up to the port sills. Totten.

SPIRLING
Spirl"ing, n.

Defn: Sparling. [Prov. Eng.]

SPIROBACTERIA Spi`ro*bac*te"ri*a, n. pl.; sing. Spirobacterium (. Etym: [NL. See 4th Spire, and Bacterium.] (Biol.)