Types of Corrosion The termcorrosionis generally used to describe the degradation of a substance or material over time due to some form of reaction, but in fact, there are more specific types of corrosion that can be differentiated by how they are caused, where they occur, and how they appe...
11. an animal resulting from a cross between a parent of ordinary stock and one of a pure breed. v.t. 12. to arrange in a series of grades; class; sort: a machine that grades eggs. 13. to determine the grade of. 14. to assign a grade to (a student's work); mark. 15...