希土 きど Also written 稀土 Meanings Noun rare earth Kanji 希 hope. Read as キ. 土 soil. Read as ド. Words containing 希土 希土類元素 (きどるいげんそ) rare-earth element 希土類 (きどるい) rare earth 日本希土類学会 (にっぽんきどるいがっかい) Rare Earth Society of Japan Word lists Chemistry Jinuma: Japanese Dictionary · Word lists