providing supplementary or additional help and support 辅助的 an auxiliary nurse. 助理护士,护理员。 auxiliary airport staff. 机场辅助人员。 the ship has an auxiliary power source. 这艘船有辅助发电设备。 ■(of troops) engaged in the service of a nation at war but not part of the regular army, and typically of foreign origin (部队)后备的 ■(of a sailing vessel) equipped with a supplementary engine (航船)装有辅助发动机的 an auxiliary schooner. 装有辅助发动机的纵帆船。
(pl. -ies)
an auxiliary person or thing 助手;辅助物 a nursing auxiliary. 护理助手,护工。 there are two main fuel tanks and two auxiliaries. 有两个主燃料箱和两个辅助燃料箱。 ■(N. Amer.)a group of volunteers giving supplementary support to an organization or institution (北美)志愿队 members of the Volunteer Fire Department's women's auxiliary. 志愿消防部女志愿队员。 ■(Grammar)an auxiliary verb (语法)助动词 ■a naval vessel with a supporting role, not armed for combat (海军的)辅助舰船
语源
late Middle English : from Latin auxiliarius, from auxilium 'help'