Search gender: all male female Maguma Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: maguma Katakana: マグマ 0 Kanji: 真熊 Meaning: 真True. Truth, not falsehood. Nature as it is. True form. Innate. 熊Bear. Animal names. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Maguma Name Meaning, Kanji Variations.