Mi 米 is the character for rice. On a tangent, did you know that rice absorbs metals well? As a result, it has a higher amount of inorganic arsenic than other popular grains, mostly absorbed from the soil. Apparently the US has been used arsenical drugs for chicken for 70 years or more, and this has polluted the soil that is often now used for rice farming.
- Consumer Reports: Report: Analysis of Arsenic in Rice and Other Grains November 2014
- Japan's Ministry of Agriculture, Forestry, and Fisheries lists measured arsenic values for rice and other foodstuffs (there are links to reports for domestic and international results) (Japanese). I used this site to convert ppb to mg/kg. Interestingly, the FDA has failed to set standards for arsenic in food. Japan appears to have had a standard in place for a while.