Term: umbra: a region of complete shadow resulting from total obstruction of light
Candidate hypernym: shadow: shade within clear boundaries → 1
Candidate hypernym: ammonium nitrate: used as an explosive and fertilizer and rocket propellant → 0
Candidate hypernym: plaintiveness: expressing sorrowfulness → 0
Candidate hypernym: campanulaceae: family of plants of the order Campanulales; in some classifications includes Lobeliaceae → 0
Candidate hypernym: paper: a medium for written communication → 0
Candidate hypernym: covariation: (statistics) correlated variation → 0
Candidate hypernym: resistance pyrometer: pyrometer that measures high temperatures by the resistance in a heated wire → 0
Candidate hypernym: endoskeleton: the internal skeleton; bony and cartilaginous structure (especially of vertebrates) → 0
Candidate hypernym: temporal bone: a thick bone forming the side of the human cranium and encasing the inner ear → 0
Candidate hypernym: timber hitch: a hitch used to secure a rope to a log or spar; often supplemented by a half hitch → 0
Candidate hypernym: riot gun: a firearm designed to disperse rioters rather than to inflict serious injury or death → 0