Powellized
/ˈpaʊəlʌɪzd/(also Powellised) Now rare
adjective
Of timber: treated by boiling in a solution of sugar so as to preserve it and reduce shrinkage.
Origin
Early 20th century; earliest use found in Scientific American Supplement. From the name of William Powell, of Liverpool (probably born 1844), who invented the process + -ized.