1 文書を見つけるための辞書。

• rickettsia
• リケッチア
• any of a group of very small rod-shaped bacteria that live in biting arthropods (as ticks and mites) and cause disease in vertebrate hosts; they cause typhus and other febrile diseases in human beings
• 腐食性の節足動物の中で生き、脊椎動物宿主の疾患を引き起こす非常に小さい桿菌（マダニ類やダニ）のグループの総称