摘要:AbstractThe versatility of linguistic corpora makes them an excellent conceptual and terminological resource. For their part, knowledge bases are rapidly gathering momentum in the field of terminology, since they allow for the creation of multidimensional conceptual systems, a significant leap forward from the traditional hierarchical or tree framework. In this paper we propose the use of a Spanish and French comparable corpus to extract terminological and conceptual information on galactosemia, a disorder belonging to the medical sub-domain of rare diseases, followed by the construction of an ontology to create a terminological knowledge base on this pathology11This research project was partially funded by the Department of Culture, Education and Universities of the Regional Government of Galicia (Spain) through grants awarded for the Consolidation and Structuring of Competitive Research Units within the Galician University System (ref. CN2012/317).. The purpose of this study is to further the development of resources that provide a satisfactory description of rare diseases, enabling translators, specialised authors, medical professionals and other users to accurately and properly understand and write texts on the topic.