Term: crown lens: a lens made of optical crown glass
Candidate hypernym: lens: a transparent optical device used to converge or diverge transmitted light and to form images → 1
Candidate hypernym: lowness: the quality of being low; lacking height → 0
Candidate hypernym: gracelessness: an unpleasant lack of grace in carriage or form or movement or expression → 0
Candidate hypernym: defender: a person who cares for persons or property → 0
Candidate hypernym: outsize: an unusual garment size (especially one that is very large) → 0
Candidate hypernym: piquet: a card game for two players using a reduced pack of 32 cards → 0
Candidate hypernym: free world: anti-communist countries collectively → 0
Candidate hypernym: schoolmarm: a woman schoolteacher (especially one regarded as strict) → 0
Candidate hypernym: ergot: a fungus that infects various cereal plants forming compact black masses of branching filaments that replace many grains of the plant; source of medicinally important alkaloids and of lysergic acid → 0
Candidate hypernym: disk access: memory access to the computer disk on which information is stored → 0
Candidate hypernym: orange yellow: a shade of yellow tinged with orange → 0