light sleep |
A condition of half sleep.
Synonym: light sleep.
Origin: dys-+ G. Nystaxis, drowsiness
(05 Mar 2000) |
light treatment |
Treatment with light. For example, a newborn with jaundice may be put under the lights.
(12 Dec 1998) |
light water |
<radiobiology> Ordinary H2O, as opposed to heavy water, which contains atoms of the heavier isotopes of hydrogen, deuterium and/or tritium.
See: hydrogen, isotope, deuterium, tritium, heavy water.
(09 Oct 1997) |
light-water reactor |
<radiobiology> Class of fission reactors using ordinary light water as a coolant, rather than liquid metal or heavy water (water with deuterium instead of hydrogen).
(09 Oct 1997) |
light wire appliance |
An orthodontic appliance utilizing small gauge labial wires with expansion and contraction loops formed into it and attached to bands fitted to individual teeth; sometimes called Begg light wire differential force technique.
(05 Mar 2000) |