resistant to a particular infection or toxin owing to the presence of specific antibodies or sensitized white blood cells 免疫的 they were naturally immune to hepatitis B. 他们生来对乙型肝炎免疫。 ■protected or exempt, especially from an obligation or the effects of something 受保护的;免除的(尤指不尽义务的;不受影响的) they are immune from legal action. 他们免受诉讼。 ■[predic.]not affected or influenced by something 不受影响的 no one is immune to his immense charm. 无人不受他巨大魅力的吸引。 ■[attrib.](Biology)of or relating to immunity (生)(与)免疫(有关)的 the body's immune system. 机体的免疫系统。
语源
late Middle English (in the sense 'free from (a liability'): from Latin immunis 'exempt from public service or charge', from in- 'not' + munis 'ready for service'. Senses relating to physiological resistance date from the late 19th cent