Residency is a stage of graduate medical training. A resident or house officer is a physician (holding either a M.D. , D.O. , MBBS, MBChB, BMed or D.P.M. degree) who practices medicine usually in a hospital or clinic.The definition of residency varies worldwide by country and structure of the medical industry.esidency is a stage of graduate medical training. A resident or house officer is a physician (holding either a M.D. , D.O. , MBBS, MBChB, BMed or D.P.M. degree) who practices medicine usually in a hospital or clinic.
In astronomy, the term period usually refers to how long an object takes to complete one cycle of revolution. In particular the orbital period of a star or planet is the time it takes to return to the same place in the orbit. Quasi-periodic oscillation. Jump to: navigation, search.
Rating Newest Oldest. Best Answer: The true period of the Earth's orbit around the sun is the Sidereal Year, which is the time taken for the Sun to go from conjunction with a fixed star back to conjunction with the same star.his is about 20 minutes less than the Sidereal Year. The difference is caused by the movement of the Earth's axis (precession) and it is the Sun's position in relation to the Earth's axis which defines the seasons.