[{"Bold_text": "noun", "List Items": ["hippopotamus ."]}, {"Bold_text": "noun", "List Items": ["Hippo Regius Hippo Regius."]}, {"Bold_text": null, "List Items": ["a combining form appearing in loanwords from Greek, where it meant “horse” (hippodrome); on this model, used in the formation of compound words (hippology)."]}]