zodi

Etymology
Related to zodiac.

Noun

 * 1)  A unit of zodiacal dust, equal to the amount of interplanetary dust in the inner solar system, which absorbs light and re-radiates it with a luminosity about 10-7 that of the sun.
 * 2) * 2011, National Research Council, Division on Engineering and Physical Sciences, Space Studies Board, Board on Physics and Astronomy, Committee for a Decadal Survey of Astronomy and Astrophysics, Program Prioritization Panels, Science Frontiers Panels, Panel Reportsâ¬"New Worlds, New Horizons in Astronomy and Astrophysics, National Academies Press (ISBN 9780309159623), page 294:
 * an exozodiacal dust disk with 3 zodis of material has been added. Measuring exozodiacal dust to levels of 1 to 10 zodi in the habitable zones of nearby stars is critical