pentadiene

== English == === Etymology === From penta- +‎ diene. === Noun === pentadiene (plural pentadienes) (organic chemistry) Either of two isomeric dienes derived from pentane ==== Derived terms ==== cyclopentadiene == Italian == === Noun === pentadiene m (plural pentadieni) (organic chemistry) pentadiene ==== Derived terms ==== ciclopentadiene === Anagrams === depenniate