Columbia Encyclopedia

Search results

500 results found

cement

(Encyclopedia)cement, binding material used in construction and engineering, often called hydraulic cement, typically made by heating a mixture of limestone and clay until it almost fuses and then grinding it to a ...

bone

(Encyclopedia)CE5 Bone bone, hard tissue that forms the skeleton of the body in vertebrate animals. In the very young, the skeleton is composed largely of cartilage and is therefore pliable, reducing the incide...

transistor

(Encyclopedia)CE5 Simple transistor circuit transistor, three-terminal, solid-state electronic device used for amplification and switching. It is the solid-state analog to the triode electron tube; the transist...

tent caterpillar

(Encyclopedia)tent caterpillar, common name for the larvae of the members of a family of moths (Lasiocampidae), easily recognized by the large silk tents, or webs, that the larvae construct during the spring in the...

Corinth, city, Greece

(Encyclopedia)Corinth kôˈrĭnthôs [key], city, capital of Corinth prefecture, S Greece, in the NE Pelopo...

Porifera

(Encyclopedia)CE5 A. Canal systems of the three morphological types of sponges B. Internal anatomy of an asconoid sponge, representative of the phylum Porifera Porifera pōrĭfˈərə [key] [Lat.,=pore bearer],...

mantle

(Encyclopedia)mantle, portion of the earth's interior lying beneath the crust and above the core. No direct observation of the mantle, or its upper boundary, has been made; its boundaries have been determined solel...

Tiepolo, Giovanni Battista

(Encyclopedia)Tiepolo, Giovanni Battista jōvänˈnē bät-tēˈstä tyĕˈpōlō [key], 1696–1770, Italian painter, b. Venice. A master of the rococo style, he was the most important Venetian painter and decorat...

chain

(Encyclopedia)chain, flexible series of connected links used in various ways, especially for the transmission of motive power, for hoisting (see pulley), and for securing or fastening. Commonly, mechanical energy f...

intestine

(Encyclopedia)intestine, muscular hoselike portion of the gastrointestinal tract extending from the lower end of the stomach (pylorus) to the anal opening. In humans this fairly narrow (about 1 in./2.5 cm) tubelike...