筋肉内 きんにくない Meanings の-adjective, Noun intramuscular Kanji 筋 muscle. Read as キン. 肉 meat. Read as ニク. 内 inside. Read as ナイ. Words containing 筋肉内 筋肉内注射 (きんにくないちゅうしゃ) intramuscular injection Word lists Medicine Jinuma: Japanese Dictionary · Word lists