单词 | laccate |
释义 | † laccaten. Chemistry. Obsolete. A salt of an acid derived from lac. Cf. laccic acid n. at laccic adj. ΚΠ 1794 G. Pearson in tr. L. B. Guyton de Morveau et al. Table Chem. Nomencl. §31. Laccates... Formed by the union of the Laccic Acid with different bases. 1821 W. T. Brande Man. Chem. (ed. 2) III. 66 Laccic acid in solution, which, upon the addition of acetate of lead, gives a precipitate of laccate of lead. 1911 J. G. McIntosh Livache's Manuf. Varnishes & Kindred Industries (ed. 2) III. iv. 32 The lead in the solder thus forms a lead acetate which gives a violet ‘laccate’ with an alcoholic solution of shellac. This entry has been updated (OED Third Edition, March 2017; most recently modified version published online December 2021). laccateadj. Mycology. Of the fruiting body of a fungus, its parts, or its surface: appearing as if lacquered or varnished. Also: having such fruiting bodies. ΚΠ 1844 London Jrnl. Bot. 3 331 The pileus has not the slightest laccate crust. 1872 Grevillea Sept. 33 Stem [of Lentinus haematopus]..blood red, almost laccate at the base. 1932 Ann. Missouri Bot. Garden 19 432 If they are laccate they feel smooth, slippery, and somewhat moist. 1986 Mycologia 78 297 (caption) Immature and mature basidiocarps with laccate areas from resinous secretions. 2000 J.-M. Moncalvo in J. Flood et al. Ganoderma Dis. Perennial Crops ii. 30 This conflicts with traditional systems of classification that accommodate laccate and non-laccate Ganoderma taxa in subgenera Ganoderma (laccate) and Elfvingia (non-laccate). This entry has been updated (OED Third Edition, March 2017; most recently modified version published online March 2022). < n.1794adj.1844 |
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