Bolus may refer to: Geography Bolus, Iran, a village in Ardabil Province, Iran Bolus, or Baulus, an Anatolian village on the site of ancient Berissa Medicine Bolus (digestion), a ball-shaped mass moving through the digestive tract Bolus (medicine), the administration of a drug, medication or other substance in the form of a single, large dose Bolus (radiation therapy), a tissue equivalent substance used in radiation therapy Bolus tracking, technique used in computed tomography imaging, to visualise vessels more clearly Triple bolus test, a medical diagnostic procedure used to assess pituitary function People with the name Bolus of Mendes (3rd century BC), esoteric Greek philosopher Brian Bolus (born 1934), former English cricketer who played in 7 Tests from 1963 Frank Bolus (1864–1939), English cricketer for Somerset Harry Bolus (1834–1911), South African botanist, botanical artist, businessman and philanthropist Edward John Bolus (1897–?), poet, civil servant, and clergyman Louisa Bolus (Harriet Margaret Louisa Bolus née Kensit, 1877–1970), South African botanist Malvina Bolus (1906–1997), Canadian historian and art collector, and editor of the Hudson's Bay Company magazine The Beaver Other uses Bolus, a type of space tether, in spaceflight Bolus armenus, an example of a bole (a reddish soft variety of clay used as a pigment) Bolus Herbarium, an herbarium at the University of Cape Town established in 1865 from a donation by Harry Bolus Bolus hook, an instrument in a Jacquard loom Zeeuwse Bolus, a pastry from the Netherlands Bolus (Belgium), a Belgian pastry See also Bolas (disambiguation)