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单词 rochetta
释义

rochettan.

Origin: A borrowing from Italian. Etymons: Italian rocchetta, rochetta.
Etymology: < Italian rocchetta polverine (1612 in this sense, in the passage translated in quot. 1662; also †rochetta), transferred use of rocchetta small rock (late 14th–early 15th cent.; also †rocheta , †rochetta ; < rocca rock n.1 + -etta -et suffix1).
Obsolete.
= polverine n.
ΘΚΠ
society > occupation and work > materials > derived or manufactured material > glass and glass-like materials > [noun] > glass-making materials
metal1589
saffora1604
massacote1622
frit1662
polverine1662
rochetta1662
tarso1662
Spanish ashes1725
bollito1753
glass-maker's manganese1797
soap of glass1815
cullet1817
muff1820
batch1874
society > occupation and work > materials > derived or manufactured material > vegetable extracts or preparations > [noun] > potash > used in glass-making
saffora1604
barilla1622
massacote1622
polverine1662
rochetta1662
Spanish ashes1725
1662 C. Merrett tr. A. Neri Art of Glass i Polverine, or Rochetta [It. rocchetta], which comes from the Levant and Syria, is the ashes of a certain herb growing there in abundance.
1738 G. Smith tr. Laboratory iii. 82 Take of calcin'd Lead 15 Pound; of Rochetta or pulverised Crystal-Frit 12 Pound.
1766 Philos. Trans. 1765 (Royal Soc.) 55 21 With metal that hath much salt, as crystal and rochetta have, you cannot make a fair green.
1813 ‘T. Martin’ Circle Mech. Arts 373/1 ‘Polverine’ or ‘Rochetta’ is one [substance used in glass-making] that is procured from the Levant.
This entry has been updated (OED Third Edition, June 2010; most recently modified version published online December 2020).
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n.1662
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更新时间:2024/12/24 2:15:00