nuclear physics

This term refers to a specialized academic and scientific discipline. It is used primarily in formal, educational, and technical registers, such as in university course catalogs, research papers, or professional biographies.

As a field of study, the term is grammatically uncountable. It describes a body of knowledge rather than a discrete object, meaning it does not have a plural form and cannot be used with indefinite articles like "a" or "an" unless followed by a countable noun such as "degree" or "course."