Term: water jacket: a container filled with water that surrounds a machine to cool it; especially that surrounding the cylinder block of an engine
Candidate hypernym: instrumentality: an artifact (or system of artifacts) that is instrumental in accomplishing some end → 1
Candidate hypernym: tuberous begonia: any of numerous begonias having large tuberous roots → 0
Candidate hypernym: atlantic walrus: a walrus of northern Atlantic and Arctic waters → 0
Candidate hypernym: elastase: a pancreatic enzyme that catalyzes the hydrolysis of elastin → 0
Candidate hypernym: floor: the legislative hall where members debate and vote and conduct other business → 0
Candidate hypernym: pet peeve: an opportunity for complaint that is seldom missed → 0
Candidate hypernym: peaceableness: a state that is calm and tranquil → 0
Candidate hypernym: false foxglove: multi-stemmed North American annual having solitary axillary dark golden-yellow flowers resembling those of the foxglove; sometimes placed in genus Gerardia → 0
Candidate hypernym: red buckeye: a shrub buckeye of southern United States → 0
Candidate hypernym: entomostraca: in some older classifications includes the Branchiopoda and Copepoda and Ostracoda and Cirripedia; no longer in technical use → 0
Candidate hypernym: cedar chest: a chest made of cedar → 0