Wels"bach, a.
Definition: Of or pertaining to Auer von Welsbach or the incandescent gas burner invented by him. -- Welsbach burner, a burner in which the combustion of a mixture of air and gas or vapor is employed to heat to incandescence a mantle composed of thoria and ceria. The mantle is made by soaking a "stocking" in a solution of nitrates of thorium and cerium (approx. 99 : 1), drying, and, for use, igniting to burn the thread and convert the nitrates into oxides, which remain as a fragile ash. The light far exceeds that obtained from the same amount of gas with the ordinary fishtail burner, but has a slight greenish hue.
Source: Webster’s Unabridged Dictionary 1913 Edition
23 February 2025
(noun) an advantageous purchase; “she got a bargain at the auction”; “the stock was a real buy at that price”
The word “coffee” entered the English language in 1582 via the Dutch “koffie,” borrowed from the Ottoman Turkish “kahve,” borrowed in turn from the Arabic “qahwah.” The Arabic word qahwah was traditionally held to refer to a type of wine.
