Term: invalidator: an official who can invalidate or nullify
Candidate hypernym: official: a worker who holds or is invested with an office → 1
Candidate hypernym: maestro: an artist of consummate skill → 0
Candidate hypernym: cell membrane: a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell; proteins in the membrane control passage of ions (like sodium or potassium or calcium) in and out of the cell → 0
Candidate hypernym: orientalist: a specialist in oriental subjects → 0
Candidate hypernym: sulfur hexafluoride: a colorless gas that is soluble in alcohol and ether; a powerful greenhouse gas widely used in the electrical utility industry → 0
Candidate hypernym: ricinus: a genus of herb having only one known species: castor-oil plant → 0
Candidate hypernym: pussy willow: small willow of eastern North America having greyish leaves and silky catkins that come before the leaves → 0
Candidate hypernym: nephrops: a genus of Nephropsidae → 0
Candidate hypernym: shoulder patch: patch worn on the shoulder of a military uniform to indicate rank → 0
Candidate hypernym: house: a building in which something is sheltered or located → 0
Candidate hypernym: bolshevism: Soviet communism → 0