Vocabulary What does 泥炭 (でいたん, deitan) mean? 泥炭 (でいたん, deitan) means peat. Quick factsReadingでいたんRomajideitanPart of speechnoun, no-adjective 泥炭でいたんdeitanpeat1noun · no-adjective peatKanji in this word泥mud炭charcoal, coal