In 1884, Angelo Moriondo of Turin, Italy, demonstrated the first working example of an espresso machine.
PIPERONAL
Noun
piperonal (uncountable)
A white crystalline powder with a floral odour, used in perfume
(chemistry) The methylene ether of 3,4 dihydroxy benzaldehyde; having a melting point of 37°C and boiling point of 263°C
Source: Wiktionary
Pip`er*o"nal, n. (Chem.)
Definition: A white crystalline substance obtained by oxidation of piperic acid, and regarded as a complex aldehyde.
Source: Webster’s Unabridged Dictionary 1913 Edition
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15 March 2025
TRUNCATION
(noun) the replacement of an edge or solid angle (as in cutting a gemstone) by a plane (especially by a plane that is equally inclined to the adjacent faces)
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