n. A female servant employed to do housework, esp. to take care of the rooms. [ 1913 Webster ]

Housemaid's knee (Med.), a swelling over the knee, due to an enlargement of the bursa in the front of the kneepan; -- so called because frequently occurring in servant girls who work upon their knees. [ 1913 Webster ]

n. an advanced student or graduate in medicine gaining supervised practical experience in a hospital or other medical institution. [ British ]
Syn. -- intern, interne, internist, medical intern. [ WordNet 1.5 ]