Repeating decimals. 1  Converting a fraction to a repeating decimal. 2  Practice: Writing fractions as repeating decimals. 3  Converting repeating decimals to fractions (part 1 of 4  2) Practice: Converting repeating decimals to fractions 5  1. Converting repeating decimals to fractions (part 2 of  2)
hydatid mole , hydatidiform mole an abnormal pregnancy characterized by placental abnormality involving swollen chorionic villi, which form a large, grapelike mass of vesicles, by trophoblastic hyperplasia, and by loss of fetal blood vessels in the villi.
The Mole. The term mole literally means a small mass. It is used as the bridge between chemistry on the atomic and macroscopic scale. If the mass of a single 12 C atom is 12.000 amu, then one mole of these atoms would have a mass of 12.000 grams.