picrotoxicadj.

Brit.

/ˌpɪkrəʊˈtɒksɪk/, U.S.

/ˌpɪkroʊˈtɑksɪk/

Forms: 1900s pikrotoxic, 1900s– picrotoxic.

Origin: Formed within English, by compounding. Etymons: picro- comb. form, toxic adj.

Etymology: < picro- comb. form + toxic adj. In sense a after French picrotoxique (in acide picrotoxique : J. Pelletier and J. P. Couerbe 1833, in Ann. de chim. et de physique 54 192). In sense b after German Pikrotoxininsäure picrotoxic acid (R. J. Meyer & P. Bruger 1898, in Ber. der Deutsch. Chem. Ges. 31 2968).

Chemistry.

picrotoxic acid n.

†a. = picrotoxin n. Obsolete.

ΚΠ

1849 Sci. Amer. 17 Feb. 171/4 There is left in the alcoholic extract of the fruit..a brown resinous acid, called the picrotoxic acid.

1866 H. Watts Dict. Chem. IV. 643 Picrotoxic acid, the name given by Pelletier and Couerbe to picrotoxin, because it unites with metallic oxides.

b. A monobasic crystalline acid, C₁₅H₁₈O₇, derived from picrotoxinin.

ΚΠ

1899 Jrnl. Chem. Soc. 76 i. 227 Pikrotoxic acid, C₁₅H₁₈O₇.

1951 Jrnl. Amer. Chem. Soc. 73 1890/1 Picrotoxic acid, C₁₅H₁₈O₇, monobasic, formed directly by the action of one mole of base upon picrotoxinin.

1967 Chem. Rev. 67 446/1 This equatorial position of the C-3 hydroxyl group makes impossible the opening of the epoxide ring as in the formation of picrotoxic acid.

1999 S. K. Agarwal et al. in Phytochemistry 50 1365/1 Two new sesquiterpene lactones, dihydroxypicrotoxinin and picrotoxic acid, were isolated and characterised from the seeds of A[namirta] cocculus... Picrotoxic acid was assigned the molecular formula C₁₅H₁₈O₇.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	picrotoxic
释义	picrotoxicadj. Brit. /ˌpɪkrəʊˈtɒksɪk/, U.S. /ˌpɪkroʊˈtɑksɪk/ Forms: 1900s pikrotoxic, 1900s– picrotoxic. Origin: Formed within English, by compounding. Etymons: picro- comb. form, toxic adj. Etymology: < picro- comb. form + toxic adj. In sense a after French picrotoxique (in acide picrotoxique : J. Pelletier and J. P. Couerbe 1833, in Ann. de chim. et de physique 54 192). In sense b after German Pikrotoxininsäure picrotoxic acid (R. J. Meyer & P. Bruger 1898, in Ber. der Deutsch. Chem. Ges. 31 2968). Chemistry. picrotoxic acid n. †a. = picrotoxin n. Obsolete. ΚΠ 1849 Sci. Amer. 17 Feb. 171/4 There is left in the alcoholic extract of the fruit..a brown resinous acid, called the picrotoxic acid. 1866 H. Watts Dict. Chem. IV. 643 Picrotoxic acid, the name given by Pelletier and Couerbe to picrotoxin, because it unites with metallic oxides. b. A monobasic crystalline acid, C₁₅H₁₈O₇, derived from picrotoxinin. ΚΠ 1899 Jrnl. Chem. Soc. 76 i. 227 Pikrotoxic acid, C₁₅H₁₈O₇. 1951 Jrnl. Amer. Chem. Soc. 73 1890/1 Picrotoxic acid, C₁₅H₁₈O₇, monobasic, formed directly by the action of one mole of base upon picrotoxinin. 1967 Chem. Rev. 67 446/1 This equatorial position of the C-3 hydroxyl group makes impossible the opening of the epoxide ring as in the formation of picrotoxic acid. 1999 S. K. Agarwal et al. in Phytochemistry 50 1365/1 Two new sesquiterpene lactones, dihydroxypicrotoxinin and picrotoxic acid, were isolated and characterised from the seeds of A[namirta] cocculus... Picrotoxic acid was assigned the molecular formula C₁₅H₁₈O₇. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < adj.1849
随便看	pseudomonocotyledonous pseudomoralist pseudomorality pseudomorph pseudomorphed pseudomorphia pseudomorphic pseudomorphically pseudomorphine pseudomorphing pseudomorphism pseudomorphisms pseudomorphose pseudomorphoses pseudomorphosing pseudomorphosis pseudomorphous pseudomorphously pseudomorphs pseudomorula pseudomorular pseudomoses pseudomucin pseudomucinous pseudomultilocular