do·main/do`men; dəˈmeɪn/ n [C] formal 【正式】 1 if something is someone's domain, they control it, are responsible for it, or their group usually does it 〔某人控制、负责等的〕领域，范围: Politics has traditionally been a male domain. 在传统上，政治一直是男人的领域。 2 all the things that are included in a subject or activity 〔学科、活动的〕范畴，范围: The problem is outside the domain of medical science. 该问题已超出了医学的范畴。 3 an area that was controlled by someone in past times 〔旧时由某人管辖的〕领地，领土