Term: perpetual motion machine: a machine that can continue to do work indefinitely without drawing energy from some external source; impossible under the law of conservation of energy
Candidate hypernym: machine: any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks → 1
Candidate hypernym: sticherus: umbrella ferns; warm regions of Australia and New Zealand → 0
Candidate hypernym: genus rhododendron: large genus of evergreen shrubs native to cooler regions of the northern hemisphere having showy flowers → 0
Candidate hypernym: snarer: someone who sets snares for birds or small animals → 0
Candidate hypernym: sarcochilus: diminutive epiphytic or lithophytic orchids with clumped short-stemmed foliage and arching racemes of colorful flowers; Australia and Polynesia to southeastern Asia → 0
Candidate hypernym: cookie jar reserve: a hidden reserve that can be used to adjust quarterly earning reports → 0
Candidate hypernym: crossing over: the interchange of sections between pairing homologous chromosomes during the prophase of meiosis → 0
Candidate hypernym: spring vetchling: bushy European perennial having nodding racemose violet-blue flowers → 0
Candidate hypernym: galley: (classical antiquity) a crescent-shaped seagoing vessel propelled by oars → 0
Candidate hypernym: yellow bass: North American freshwater bass resembling the larger marine striped bass → 0
Candidate hypernym: bourbon: a member of the European royal family that ruled France → 0