Term: napier's bones: a set of graduated rods formerly used to do multiplication and division by a method invented by John Napier
Broader: artifact: a man-made object taken as a whole | Unrelated: dysdercus: a genus of slender long-legged bugs that feed on the developing seeds of cotton and stain it
Broader: artifact: a man-made object taken as a whole | Unrelated: airiness: the property of something spacious and abounding in fresh air
Broader: artifact: a man-made object taken as a whole | Unrelated: atrophy: a decrease in size of an organ caused by disease or disuse
Broader: artifact: a man-made object taken as a whole | Unrelated: geastrum: type genus of Geastraceae; fungi whose outer peridium when dry splits into starlike segments
Broader: artifact: a man-made object taken as a whole | Unrelated: reckoner: a handbook of tables used to facilitate computation
Broader: artifact: a man-made object taken as a whole | Unrelated: protection: the imposition of duties or quotas on imports in order to protect domestic industry against foreign competition
Broader: artifact: a man-made object taken as a whole | Unrelated: survivor guilt: a deep feeling of guilt often experienced by those who have survived some catastrophe that took the lives of many others; derives in part from a feeling that they did not do enough to save the others who perished and in part from feelings of being unworthy relative to those who died
Broader: artifact: a man-made object taken as a whole | Unrelated: pensiveness: persistent morbid meditation on a problem
Broader: artifact: a man-made object taken as a whole | Unrelated: engineer: a person who uses scientific knowledge to solve practical problems
Broader: artifact: a man-made object taken as a whole | Unrelated: percussion: the act of exploding a percussion cap