Any of various fungi, especially of the genus Rhizopus, that grow on bread and other foods.
More example sentences
- The acidic cheese may have also altered the pH level of the sandwich; bread mold grows best when the pH is more or less neutral.
- Welcome to the fourth-grade science fair, with its baking-soda volcanoes, bread mold grown in drawers, proud parents and thoughtful judges.
- I grew bread mold once, to see what would happen.