Geiriadur Rhywogaethau / A Dictionary of SpeciesOBJECT LANGUAGEWelshMETALANGUAGEWelsh, EnglishGENREDictionaries on special topics, Terminological dictionarieshttps://www.llennatur.cymru/Y-Bywiadur
Coleg Cymraeg Cenedlaethol Terms for Higher EducationOBJECT LANGUAGEWelshMETALANGUAGEWelsh, EnglishGENRETerminological dictionarieshttps://colegcymraeg.ac.uk/termau/
Y porth i adnoddau Gwasanaeth Cyfieithu Llywodraeth Cymru / Portal for the Welsh Government Translation Service’s resourcesOBJECT LANGUAGEWelshMETALANGUAGEWelsh, EnglishGENRETerminological dictionarieshttps://llyw.cymru/bydtermcymru
Welsh National Terminology PortalOBJECT LANGUAGEWelshMETALANGUAGEWelsh, EnglishGENRETerminological dictionaries, Portals and aggregatorshttp://termau.cymru
Standardized terminology for the field of educationOBJECT LANGUAGEWelshMETALANGUAGEWelsh, EnglishGENRETerminological dictionarieshttp://www.termiaduraddysg.org/