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.
Wet puddling had the advantage that it was much more efficient than dry puddling (or any earlier process). The best yield of iron achievable from dry puddling is a ton of iron from 1.3 tons of pig iron, but the yield from wet puddling was close to 100%.uddling was one of several processes developed in the second half of the 18th century in Great Britain for producing bar iron from pig iron without the use of charcoal.