单词 cyclopentadiene 释义 cyclopentadiene, n. Chem.Brit. |sklpntdin|, U.S. |saklopn(t)dain|[‹ cyclo- comb. form + penta- comb. form + di- prefix1 + -ene comb. form, after German Cyclopentadin (G. Kraemer & A. Spilker 1896, in Berichte der Deutsch. chem....