1. something suggested or assumed as true or as a basis for reasoning, discussion, or belief
Usage: formal
2. the act of suggesting or assuming something as true
Usage: formal

Examples

• The theory rests on the postulation that all matter is composed of atoms.
• His postulation about climate change proved to be accurate.
• The mathematician’s postulation formed the basis for her entire proof.
• Without clear evidence, her argument remained mere postulation.
• The postulation of parallel universes is still debated among physicists.
• The researcher’s postulation challenged conventional wisdom in the field.