[{"Bold_text": "noun", "List Items": ["any marine crustacean of the subclass Cirripedia, usually having a calcareous shell, being either stalkedgoose barnacleand attaching itself to ship bottoms and floating timber, or stalklessrock barnacle, or acorn barnacleand attaching itself to rocks, especially in the intertidal zone.", "a person or thing that clings tenaciously."]}, {"Bold_text": "noun", "List Items": ["Usuallybarnacles.an instrument with two hinged branches for pinching the nose of an unruly horse.", "barnacles,British Dialect. spectacles(def3) spectacles(def3)."]}]