Columbia Encyclopedia

Search results

500 results found

Ortega y Gasset, José

(Encyclopedia)Ortega y Gasset, José hōsāˈ ôrtāˈgä ē gäsĕtˈ [key], 1883–1955, Spanish essayist and philosopher. He studied in Germany and was influenced by neo-Kantian thought. He called his philosophy...

Frost, Robert

(Encyclopedia)Frost, Robert, 1874–1963, American poet, b. San Francisco. Perhaps the most popular and beloved of 20th-century American poets, Frost wrote of the character, people, and landscape of New England in ...

Witt, Jan de

(Encyclopedia)Witt, Jan de yän [key], 1625–72, Dutch statesman. Like his father, Jacob de Witt, burgomaster of Dort, he became a leading opponent of the house of Orange and played a vital role in the three succe...

probability

(Encyclopedia)probability, in mathematics, assignment of a number as a measure of the “chance” that a given event will occur. There are certain important restrictions on such a probability measure. In any exper...

anesthesiology

(Encyclopedia)anesthesiology ănˌĭsthēˌzēŏlˈəjē [key], branch of medicine concerned primarily with procedures for rendering patients insensitive to pain, and for supporting life systems under the strains o...

lockout

(Encyclopedia)lockout, intentional closing up of a company, factory, or shop by an employer to prevent employees from working during a strike or labor dispute. The term lockout is sometimes confused with the term s...

pentimento

(Encyclopedia)pentimento pĕnˌtəmĕnˈtō [key], painter's term for the evidence in a work that the original composition has been changed. Often the opaque pigment with which the artist covered a mistake or unwan...

health-care proxy

(Encyclopedia)health-care proxy, legal document in which a person assigns to another person, usually called an agent or proxy, the authority to make medical decisions in case of incapacitation. It is, in essence, a...

diffusion

(Encyclopedia)diffusion, in chemistry, the spontaneous migration of substances from regions where their concentration is high to regions where their concentration is low. Diffusion is important in many life process...

Doppler effect

(Encyclopedia)Doppler effect, change in the wavelength (or frequency) of energy in the form of waves, e.g., sound or light, as a result of motion of either the source or the receiver of the waves; the effect is nam...