Correct spelling for the English word "acetonum" is [ˈasɪtˌɒnəm], [ˈasɪtˌɒnəm], [ˈa_s_ɪ_t_ˌɒ_n_ə_m] (IPA phonetic alphabet).
Spiritus pyroaceticus, ether pyroaceticus; a thin colorless liquid of an ethereal odor, containing not less than 99 per cent. of absolute acetone dimethyl ketone; has been employed in rheumatism and gout in doses of 15-20 (1.0-1.3). It has also been used in warfare as a tear gas or lacrymator.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.