- adjective referring to something which is usual and is to be expected
- adjective usual or which happens regularly
- Conforming to that which is standard, common, typical, or expected.
- A value or magnitude which is normal (1).
- Perpendicular to. For example, a line which is at a right angle to a surface.
- A chemical solution whose concentration is one equivalent weight of solute per liter of solution. Also called normal solution.