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keto-form
keto-form n.
Brit. 
/ˈkiːtə(ʊ)fɔːm/
, /ˈkiːtə(ʊ)fɔːm/U.S. /ˈkidoʊˌfɔrm/
/ˈkidoʊˌfɔrm/ΚΠ
1927 Jrnl. Amer. Chem. Soc. 49 856 Acetylacetone in 95% alcohol solution is an equilibrium mixture of the keto and enol forms.
1968 R. O. C. Norman Princ. Org. Synthesis i. 18 For ethyl acetoacetate..two factors increase the bonding..of the enol form relative to the keto form.
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