n.[C]

1. 居民，定居者；侨民
   foreign residents

   外国定居者

2. 住院医生
3. 留鸟；无迁徙习性的动物

a.[Z]

1. 居住的，定居的；常驻的[（+in）]
2. 住校的；住院的；住在住所的[B]
   a resident student

   寄宿生

3. （鸟类等）无迁徙习性的
4. 固有的，内在的；存在于……的[（+in）]
   powers of sensation resident in the nerves

   神经质的敏感力

n.

1. a person who lives somewhere on a long-term basis.
   ▸a bird, butterfly, or other animal of a species that does not migrate.
   ▸Brit. a guest in a hotel who stays for one or more nights.
   ▸US a pupil who boards at a boarding school.
2. N. Amer. a medical graduate engaged in specialized practice under supervision in a hospital.
3. an intelligence agent in a foreign country.
4. historical a British government agent in any semi-independent state, especially the Governor General's representative at the court of an Indian state.

adj.

1. living somewhere on a long-term basis.
   ▸having quarters on the premises of one's work.
   ▸attached to and working regularly for a particular institution.
   ▸(of a bird, butterfly, or other animal) non-migratory.
2. (of a computer program, file, etc.) immediately available in computer memory, rather than having to be loaded from elsewhere.