In which century did the term "scientific" start to gain prominence?

The term "scientific" began to gain prominence in the 17th century. This era marked a significant shift in the approach to understanding the natural world, moving towards systematic observation and experimentation, which are foundational elements of the scientific method. Influential figures such as Galileo and Bacon advocated for empirical approaches that emphasized gathering data and validating hypotheses through observation and experimentation.

While later centuries saw further development of scientific disciplines and more formalization of scientific practices, the roots of the term "scientific" and its application lie squarely in the 17th century. The growth of modern science and the expansion of its methodologies took place thereafter, but the groundwork that led to the widespread use of the term occurred during this earlier period.