ses·sion/`sɛʃən; ˈseʃən/ n [C] 1 a period of time used for a particular purpose, especially by a group of people 〔一组人从事某项活动的〕一段时间: a question-and-answer session 问答时间 2 a formal meeting, especially of a court of law or government organization 〔法院的〕开庭; 〔政府机构的〕会议: The State Court is now in session. 州法院现正在开庭。