Term: black opal: a dark colored opal with internal reflections of green or red
Candidate hypernym: relation: an abstraction belonging to or characteristic of two entities or parts together → 1
Candidate hypernym: barrel cactus: a cactus of the genus Ferocactus: unbranched barrel-shaped cactus having deep ribs with numerous spines and usually large funnel-shaped flowers followed by dry fruits → 0
Candidate hypernym: entry: an item inserted in a written record → 0
Candidate hypernym: prion: (microbiology) an infectious protein particle similar to a virus but lacking nucleic acid; thought to be the agent responsible for scrapie and other degenerative diseases of the nervous system → 0
Candidate hypernym: safflower oil: oil from seeds of the safflower plant → 0
Candidate hypernym: action: the series of events that form a plot → 0
Candidate hypernym: nitrogenase: an enzyme of nitrogen-fixing microorganisms that catalyzes the conversion of nitrogen to ammonia → 0
Candidate hypernym: highland fling: a vigorous Scottish reel → 0
Candidate hypernym: love match: a marriage for love's sake; not an arranged marriage → 0
Candidate hypernym: pipe bomb: a small homemade bomb usually contained in a metal pipe → 0
Candidate hypernym: paper mill: a mill where paper is manufactured → 0