A metallurgist is a professional who specializes in the science of metals and their properties. The term METALLURGIST SAMPLE can be broken down into two parts: Metallurgist, which refers to the profession, and Sample, which refers to the ORE that is studied by the metallurgist. The crossword solution for the term ORE is 3 letters, which is 'ORE'. This indicates that the metallurgist studies ORE, which is a naturally occurring solid material from which a metal or valuable mineral can be extracted.