Term: purple bacteria: free-living Gram-negative pink to purplish-brown bacteria containing bacteriochlorophyll
Candidate hypernym: object: a tangible and visible entity; an entity that can cast a shadow → 1
Candidate hypernym: radioisotope: a radioactive isotope of an element; produced either naturally or artificially → 0
Candidate hypernym: clam: flesh of either hard-shell or soft-shell clams → 0
Candidate hypernym: identity matrix: a scalar matrix in which all of the diagonal elements are unity → 0
Candidate hypernym: hierarchical menu: a secondary menu that appears while you are holding the cursor over an item on the primary menu → 0
Candidate hypernym: distraction: mental turmoil → 0
Candidate hypernym: mouser: a cat proficient at mousing → 0
Candidate hypernym: concourse: a wide hallway in a building where people can walk → 0
Candidate hypernym: monotheist: a believer in one god → 0
Candidate hypernym: turnstile: a gate consisting of a post that acts as a pivot for rotating arms; set in a passageway for controlling the persons entering → 0
Candidate hypernym: zodiac: (astrology) a circular diagram representing the 12 zodiacal constellations and showing their signs → 0