| drift motion | <radiobiology> Ordinarily particles placed in a magnetic field will simply orbit in circles, but if the magnetic field is not uniform, or curves, or there is an electrical field perpendicular to the magnetic field, or another force is applied perpendicular to the magnetic field, then the guiding centres of the particle orbits will drift (generally perpendicular to the magnetic field and to the applied force). (09 Oct 1997) |
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| time and motion studies | The observation and analysis of movements in a task with an emphasis on the amount of time required to perform the task. (12 Dec 1998) |
| equations of motion | <radiobiology> Set of equations describing the time evolution of the variables which describe the state of a physical system. (09 Oct 1997) |
| excito-motion | <physiology> Motion excited by reflex nerves. See Excito-motory. Source: Websters Dictionary (01 Mar 1998) |