Term: electron gun: the electrode that is the source of electrons in a cathode-ray tube or electron microscope; consists of a cathode that emits a stream of electrons and the electrostatic or electromagnetic apparatus that focuses it
Candidate hypernym: artifact: a man-made object taken as a whole → 1
Candidate hypernym: gourd: any vine of the family Cucurbitaceae that bears fruits with hard rinds → 0
Candidate hypernym: floret: a diminutive flower (especially one that is part of a composite flower) → 0
Candidate hypernym: diplomat: a person who deals tactfully with others → 0
Candidate hypernym: thuja: red cedar → 0
Candidate hypernym: birdbath: an ornamental basin (usually in a garden) for birds to bathe in → 0
Candidate hypernym: acclimatization: adaptation to a new climate (a new temperature or altitude or environment) → 0
Candidate hypernym: asian longhorned beetle: a beetle from China that has been found in the United States and is a threat to hardwood trees; lives inside the tree; no natural predators in the United States → 0
Candidate hypernym: grain: 1/60 dram; equals an avoirdupois grain or 64.799 milligrams → 0
Candidate hypernym: moray: family of brightly colored voracious eels of warm coastal waters; generally nonaggressive to humans but larger species are dangerous if provoked → 0
Candidate hypernym: cigarette burn: a burn mark left by a smoldering cigarette → 0