pyromeconicadj.
/ˌpʌɪrə(ʊ)mᵻˈkɒnɪk/, U.S. /ˈˌpaɪroʊməˈkɑnɪk/ Chemistry.
pyromeconic acid n. a crystalline, heterocyclic, weakly acidic compound obtained from the destructive distillation of meconic or comenic acids.Pyromeconic acid is 3-hydroxy-γ-pyrone, C5H4O3.
ΚΠ
1836 W. T. Brande Man. Chem. (ed. 4) 1023 Pyromeconic Acid. This acid is among the products of the destructive distillation of the meconic acid; it is a crystalline sublimate, which fuses at a temperature of about 250°.
1866 H. Watts Dict. Chem. IV. 761 No ether or amide of pyromeconic acid has yet been obtained.
1953 I. Heilbron & H. M. Bunbury Dict. Org. Compounds (rev. ed.) IV. 282/2 Pyromeconic acid (3-Hydroxy-γ-pyrone).
1995 Biosci., Biotechnol. & Biochem. 59 886/1 An antifungal spot was detected..from the water diffusates of physically damaged leaves of E[rigeron] annuus... Subsequently the antifungal substance inducible by wounding was identified as pyromeconic acid.
Derivatives
pyroˈmeconate n. a salt of pyromeconic acid.
ΚΠ
1836 W. T. Brande Man. Chem. (ed. 4) 1023 The neutral pyromeconate of lead.
1905 Jrnl. Amer. Chem. Soc. 27 954 In some cases the properties indicate an impure pyromeconate rather than a meconate.
1988 Inorg. Chem. 27 3939/2 Pyromeconate,..a 3-hydroxy-4-pyronate anion with no substituents, is found to have 2-fold symmetry when bound to either Al or In.
This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).
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adj.1836