Most three-letter abbreviations are initialisms: all the letters are pronounced as the names of letters, as in APA /ËeÉªpiËËeÉª/ AY-pee-AY. The Jargon File also mentions the abbreviation ETLA for extended three-letter acronym to refer to four-letter acronyms/abbreviations.  2 Extended three-letter acronym is sometimes abbreviated to XTLA.
Definition of PUDDLING. : the process of converting pig iron into wrought iron or rarely steel by subjecting it to heat and frequent stirring in a furnace in the presence of oxidizing substances. ADVERTISEMENT.Nglish: Translation of puddling for Spanish speakers.weet. : the process of converting pig iron into wrought iron or rarely steel by subjecting it to heat and frequent stirring in a furnace in the presence of oxidizing substances.
In refining iron, and making steel, the puddling process removed impirities from crude pig iron. Until the creation of the Bessemer process, it was the best method to do this. â¦ See the link below for information on puddling.