zodi noun1 •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.[…] 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 […] — 2011 formszodis
