Below you can find the Before it was introduced around 1940 this man-made fiber had been called no-run & nuron Jeopardy Words Answer. The answer to Before it was introduced around 1940 this man-made fiber had been called no-run & nuron has 5 letters. This clue belongs to the Clothing category and is part of Jeopardy Word Level 1991. If you scroll near the bottom you will find other clues and answers part of level 1991