The objectives of this special research are to study the theory, procedure and methodology of terminology and create a terminology on car transmission system. The results and findings of this special research will benefit the translators who are working in an automotive industry and those who will need a reference material regarding the car transmission system. The research is based on terminological methods and principles proposed by several terminologists. The process in this research is composed of six steps: (1) Define topic, objectives and research scope 2) Research on terminological methodology 3) Gathering data to create corpus and extract terms 4) Draw conceptual relationship from terms 5) Making extraction record and 6) Making terminological record. The terminology on car transmission system includes 31 terms, presented according to conceptual relations. Each record consists of English term, Thai term, grammatical category, subject field, definition, context, note, linguistic specification and cross reference.
