leveling according to the indications of a spirit level.
- Spirit of enterprise
noun 1. the motivation to set up and succeed in business or commerce
or spirits of hartshorn noun, Chemistry. 1. a colorless, pungent, suffocating, aqueous solution of about 28.5 percent ammonia gas: used chiefly as a detergent, for removing stains and extracting certain vegetable coloring agents, and in the manufacture of ammonium salts.
noun, Pharmacology. 1. ethyl nitrite spirit.
adjective 1. spirited; lively (used as a musical direction). adjective, adverb 1. (music) (often preceded by a tempo marking) to be played in a spirited or animated manner: allegro spiritoso