The act or process of folding, or the state of being folded; a fold or series of folds in something.
From 'fold' plus the suffix '-ure,' which creates nouns from verbs (like 'closure' from 'close'). This archaic term reflects older patterns of English word formation.
Foldure is an almost forgotten word, but geologists still use it in old textbooks to describe rock formations created by folding and bending of the earth's crust over millions of years.
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