stiffeningOur editors are putting together more complete content — check back in about 20 minutesstiffening動詞 · 1名詞 · 1stiffening — verb動詞1. become rigid or less flexible1.動詞釋義become rigid or less flexible例句Her muscles started stiffening after the long run.stiffening — noun名詞1 解釋1. material added to make something stiff1.名詞釋義material added to make something stiff例句Use interfacing as stiffening for the collar.