ˈfəʊldɪŋ ˈfoʊldɪŋ ˈfəʊldɪŋ ˈfoʊldɪŋ the act of folding he gave the napkins a double fold capable of being folded up and stored a foldaway bed a geological process that causes a bend in a stratum of rock the process whereby a protein molecule assumes its intricate three-dimensional shape understanding protein folding is the next step in deciphering the genetic code