"Научной" is a Russian word that translates to "scientific" in English. It refers to anything related to the systematic study of the natural world through observation and experimentation. This includes various fields such as biology, chemistry, and physics, where researchers seek to understand and explain phenomena. In a broader context, "научной" can also describe methods, principles, or approaches that are based on empirical evidence and logical reasoning. Scientific research often involves forming hypotheses, conducting experiments, and analyzing data to draw conclusions, contributing to the advancement of knowledge in various disciplines.