vegetationPronunciation: /vɛdʒɪˈteɪʃ(ə)n/Translate vegetation | into French | into German | into Italian | into Spanish Definition of vegetation noun [mass noun] 1plants considered collectively, especially those found in a particular area or habitat:the chalk cliffs are mainly sheer with little vegetation 2the action or process of vegetating. Derivatives vegetational adjective Origin: mid 16th century (in sense 2): from medieval Latin vegetatio(n-) 'power of growth', from the verb vegetare (see vegetate)vegetation in other Oxford dictionaries Definition of vegetation in the US English dictionary