- A white amorphous or crystalline compound obtained by the limited dehydration of mannite.
- A white amorphous or crystalline substance gotten by the limited dehydration of mannite.
- title of two substances, C6H12O5. These are generally created by prolonged boiling of mannite with concentrated hydrochloric acid, and therefore are distinguished as amorphous and crystalline. The former is semisolid and feebly dextrorotatory; the second forms monoclinic tables and it is highly levorotatory.