† petrosiliceousadj.

Forms: 1700s–1800s petrosiliceous, 1800s petrosilicious.

Origin: Formed within English, by compounding. Etymons: petro- comb. form¹, siliceous adj.

Etymology: < petro- comb. form¹ + siliceous adj., after petrosilex n. Compare French pétrosilicieux (late 18th cent.), Italian petrosiliceo (1792 in the source translated in quot. 1798).With form petrosilicious , compare silicious adj. N.E.D. (1905) gives the pronunciation as (pe:trosili·ʃəs) /ˌpɛtrəʊsɪˈlɪʃəs/.

Geology. Obsolete.

Consisting of or containing petrosilex.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [adjective] > felsite

petrosiliceous1798

felsitic1879

1798 tr. L. Spallanzani Trav. Two Sicilies II. xv. 376 Angular and irregular pieces of lava of a petrosiliceous base [It. da un fondo petrosiliceo].

1804 Philos. Trans. (Royal Soc.) 94 298 A species of petrosilex is found..in Corsica, which contains radiated petrosiliceous glands, from half a line to an inch in diameter.

1851 Sci. Amer. 11 Jan. 131/4 The mineralogical characteristics of the Petuntse identify them with the composition of petrosilicious felspar.

1884 Amer. Naturalist 18 286 In Cambodia..he has found microgranulite, granulite, porphyry and petrosiliceous porphyry.

This entry has been updated (OED Third Edition, December 2005; most recently modified version published online December 2020).

单词	petrosiliceous
释义	† petrosiliceousadj. Forms: 1700s–1800s petrosiliceous, 1800s petrosilicious. Origin: Formed within English, by compounding. Etymons: petro- comb. form¹, siliceous adj. Etymology: < petro- comb. form¹ + siliceous adj., after petrosilex n. Compare French pétrosilicieux (late 18th cent.), Italian petrosiliceo (1792 in the source translated in quot. 1798).With form petrosilicious , compare silicious adj. N.E.D. (1905) gives the pronunciation as (pe:trosili·ʃəs) /ˌpɛtrəʊsɪˈlɪʃəs/. Geology. Obsolete. Consisting of or containing petrosilex. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [adjective] > felsite petrosiliceous1798 felsitic1879 1798 tr. L. Spallanzani Trav. Two Sicilies II. xv. 376 Angular and irregular pieces of lava of a petrosiliceous base [It. da un fondo petrosiliceo]. 1804 Philos. Trans. (Royal Soc.) 94 298 A species of petrosilex is found..in Corsica, which contains radiated petrosiliceous glands, from half a line to an inch in diameter. 1851 Sci. Amer. 11 Jan. 131/4 The mineralogical characteristics of the Petuntse identify them with the composition of petrosilicious felspar. 1884 Amer. Naturalist 18 286 In Cambodia..he has found microgranulite, granulite, porphyry and petrosiliceous porphyry. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online December 2020). < adj.1798
随便看	θ569 θ5690 θ56900 θ56901 θ56902 θ56903 θ56904 θ56905 θ56906 θ56907 θ56908 θ56909 θ5691 θ56910 θ56911 θ56912 θ56913 θ56914 θ56915 θ56916 θ56917 θ56918 θ56919 θ5692 θ56920