noun[ S ]finance & economicsspecializeduk/ˈpraɪ.mə.ri ˌsek.tər/us/ˈpraɪ.mɚ.i ˌsek.tɚ/
(采集和销售自然产品如谷物、石头、木材的)第一产业
industries that involve collecting and selling natural things, for example crops, rock, and wood, often in order for them to be made into something else