Elhuyar ZTH
The Elhuyar Zientzia eta Teknologiaren Hiztegi Entziklopedikoa (ZTH) (in English: the Elhuyar Encyclopaedic Dictionary of Science and Technology) is an encyclopaedic dictionary of science and technology first published in Basque in books and CD-ROM formats in October 2009. The Elhuyar ZTH online version includes the definition of 23,000 concepts and contains the corresponding Spanish terms (English, Spanish and French), articles, images and some helpful units (source)
