Term: incidence: the striking of a light beam on a surface
Broader: optical phenomenon: a physical phenomenon related to or involving light | Unrelated: fragrant sumac: sweet-scented sumac of eastern America having ternate leaves and yellowish-green flowers in spikes resembling catkins followed by red hairy fruits
Broader: optical phenomenon: a physical phenomenon related to or involving light | Unrelated: patent and trademark office database: the government bureau in the Department of Commerce that keeps a record of patents and trademarks and grants new ones
Broader: optical phenomenon: a physical phenomenon related to or involving light | Unrelated: genus ephedra: type and sole genus of Ephedraceae: tropical and subtropical evergreen shrubby or creeping plants native to dry and inhospitable regions
Broader: optical phenomenon: a physical phenomenon related to or involving light | Unrelated: extreme: the furthest or highest degree of something
Broader: optical phenomenon: a physical phenomenon related to or involving light | Unrelated: photomechanics: the technique of using photomechanical methods to make photographs into plates for printing
Broader: optical phenomenon: a physical phenomenon related to or involving light | Unrelated: heartlessness: an absence of concern for the welfare of others
Broader: optical phenomenon: a physical phenomenon related to or involving light | Unrelated: indoctrination: teaching someone to accept doctrines uncritically
Broader: optical phenomenon: a physical phenomenon related to or involving light | Unrelated: escape: a means or way of escaping
Broader: optical phenomenon: a physical phenomenon related to or involving light | Unrelated: wheat flag smut: fungus affecting leaves and stems of wheat
Broader: optical phenomenon: a physical phenomenon related to or involving light | Unrelated: erythroblastosis: a blood disease characterized by the abnormal presence of erythroblasts in the blood