novamontnovelty fabricnovelty yarnnoxiousnozzlenrnrc nylonntibondingnuancagenuancenubnub yarnnubbinuclear remnantnucleophilenucleophilic additionnucleophilic attacknucleophilic constantnucleophilic substitutionnucleusnufilnumbernumber average degree of polymerizationnumber average molecular weightnumber of filamentnumber of flex cyclenumber of windnumberatornumbered ducknumberingnumericalnupronnursesnutnut brownnut fibernut fibrenwnynycelnycronnyl filnyl francenylenkanyloftnylonnylon 11nylon 250nylon 4nylon 6