1. a proposed explanation or theory that can be tested through research or experimentation
Usage: scientific
2. an assumption or supposition made as a basis for reasoning or investigation

Examples

• The scientist formed a hypothesis about the cause of the disease.
• We need to test this hypothesis with controlled experiments.
• Her hypothesis was that students learn better with visual aids.
• The research either supports or disproves the original hypothesis.
• Based on the evidence, they developed a new hypothesis.
• The hypothesis must be testable and falsifiable to be scientific.