any observation that has been repeatedly confirmed and accepted as true; any scientific observation that has not been refuted
The structure of a cell membrane is considered a scientific fact.
How could we ever say, as a matter of scientific fact, that one way of life is better, or more moral, than another?
“Equal time” may work for matters of political opinion, but not scientific fact.
Every day Florida shows how climate change is now a backyard reality as well as a scientific fact.
In a sense it is the first which is the only true fact in the rough, and the second is already a sort of scientific fact.
It is a scientific fact which the microscope in every case verifies.
This is not mere idle rumor; it if a scientific fact well authenticated.
The benefit may have been infinitesimal, but every scientific fact is of some value.
Unless the scientific fact you brought him had some moral value, it made little impression upon him.
Then she discovered a scientific fact which very few people are aware of.
The primitive belief seems to have had a sound basis in scientific fact.