Columbia Encyclopedia

Search results

136 results found

CAT scan

(Encyclopedia)CAT scan kăt [key] [computerized axial tomography], X-ray technique that allows relatively safe, painless, and rapid diagnosis in previously inaccessible areas of the body; also called CT scan. An X-...

CT scan

(Encyclopedia)CT scan: see CAT scan.

computerized axial tomography

(Encyclopedia)computerized axial tomography: see CAT scan. ...

PET scan

(Encyclopedia)PET scan pŏzˈĭtrŏnˌ ĭmĭshˈən təmŏgˈrəfē [key], a medical imaging technique that monitors metabolic, or biochemical, activity in the brain and other organs by tracking the movement and co...

cat

(Encyclopedia)cat, name applied broadly to the carnivorous mammals constituting the family Felidae, and specifically to the domestic cat, Felis catus. The great roaring cats, the lion, tiger, and leopard are anatom...

Hounsfield, Sir Godfrey Newbold

(Encyclopedia)Hounsfield, Sir Godfrey Newbold, 1919–2004, British electrical engineer. A radar expert for the Royal Air Force during World War II, in the 1950s Hounsfield began developing computer and X-ray techn...

Cormack, Allan MacLeod

(Encyclopedia)Cormack, Allan MacLeod məkloudˈ, côrˈmək [key], 1924–98, American physicist, b. Johannesburg, South Africa. After studying at the Univ. of Cape Town (B.S. physics, 1944, M.S. crystallography, 1...

coon cat

(Encyclopedia)coon cat, name for a breed of large domestic cats (also called Maine cats), for the coatimundi, and for the cacomistle. ...

Himalayan cat

(Encyclopedia)Himalayan cat: see cat.

angora cat

(Encyclopedia)angora cat: see cat.