Term: line spectrum: a spectrum in which energy is concentrated at particular wavelengths; produced by excited atoms and ions as they fall back to a lower energy level
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: organization: the activity or result of distributing or disposing persons or things properly or methodically
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: pterocarya: Asiatic nut trees: wing nuts
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: social activity: activity considered appropriate on social occasions
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: anhingidae: snakebirds
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: yellow chamomile: Eurasian perennial herb with hairy divided leaves and yellow flowers; naturalized in North America
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: scyphozoa: coelenterates in which the polyp stage is absent or at least inconspicuous: jellyfishes
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: arctic: a waterproof overshoe that protects shoes from water or snow
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: ostraciidae: boxfishes
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: frontispiece: front illustration facing the title page of a book
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: quarter: (football, professional basketball) one of four divisions into which some games are divided