Columbia Encyclopedia

Search results

500 results found

bluestone

(Encyclopedia)bluestone, common name for the blue, crystalline heptahydrate of cupric sulfate called chalcanthite, a minor ore of copper. It also refers to a fine-grained, light to dark colored blue-gray sandstone....

Tôrres Vedras

(Encyclopedia)Tôrres Vedras tōˈrəsh vāˈdrəsh [key], town (1991 pop. 13,300), Lisboa dist., W central Portugal, in Estremadura. Located in an agricultural center, it produces wine and minor manufactures. The ...

physician assistant

(Encyclopedia)physician assistant (PA), health-care professional who provides patient services ranging from taking medical histories and doing physical examinations to performing minor surgical procedures; often ca...

Gemini

(Encyclopedia)Gemini jĕmˈənī, –nē [key] [Lat.,=the twins], northern constellation lying on the ecliptic (the sun's apparent path through the heavens) between Taurus and Cancer, N of Canis Minor; it is one of...

Vishnu

(Encyclopedia)Vishnu vĭshˈno͞o [key], one of the greatest gods of Hinduism, also called Narayana. First mentioned in the Veda as a minor deity, his theistic cults, known as Vaishnavism, or Vishnuism, grew steadi...

Cyrus the Great

(Encyclopedia)Cyrus the Great sīˈrəs [key], d. 529 b.c., king of Persia, founder of the greatness of the Achaemenids and of the Persian Empire. According to Herodotus, he was the son of an Iranian noble, the eld...

saxifrage

(Encyclopedia)saxifrage săkˈsĭfrĭj [key], common name for several members of the Saxifragaceae, a family of widely varying herbs, shrubs, and small trees of cosmopolitan distribution. They are found especially ...

Celt

(Encyclopedia)Celt kĕlt [key]. 1 One who speaks a Celtic language or who derives ancestry from an area where a Celtic language was spoken; i.e., one from Ireland, the Scottish Hebrides and Highlands, the Isle of M...

Huntington, Ellsworth

(Encyclopedia)Huntington, Ellsworth, 1876–1947, American geographer, b. Galesburg, Ill., grad. Beloit College, 1897, M.A. Harvard, 1902, Ph.D. Yale, 1909. He taught at Euphrates College, Turkey (1897–1901); acc...

waxwing

(Encyclopedia)waxwing, any of three species of perching songbirds of the Northern Hemisphere. Waxwings have crests (raised only in alarm) and sleek brownish-gray plumage with flecks of red pigment resembling sealin...