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element

(Encyclopedia)CE5 element, in chemistry, a substance that cannot be decomposed into simpler substances by chemical means. A substance such as a compound can be decomposed into its constituent elements by means o...

subspecies

(Encyclopedia)subspecies, also called race, a genetically distinct geographical subunit of a species. See also classification. ...

Richardson, Ernest Cushing

(Encyclopedia)Richardson, Ernest Cushing, 1860–1939, American librarian and bibliographer, b. Woburn, Mass. He was assistant librarian at Amherst (1879–80), librarian and professor of bibliology at Hartford The...

teleportation, in physics

(Encyclopedia)teleportation, in physics, the transfer of key properties from one particle (or group of particles) to another a significant distance apart without a physical connection between the two particles (or ...

demand and supply

(Encyclopedia)demand and supply: see supply and demand. ...

Daman and Diu

(Encyclopedia)Daman and Diu dəmänˈ, dēˈo͞o [key], union territory (2001 provisional pop. 158,059), 50 sq mi (130 sq km), W India, on the Arabian Sea, composed of two former Portuguese colonies seized by India...

Damon and Pythias

(Encyclopedia)Damon and Pythias dāˈmən, pĭthˈēəs [key], two youths whose loyalty to each other symbolizes true friendship. Pythias, a Pythagorean, condemned to death for plotting against Dionysius I of Syrac...

Daphnis and Chloë

(Encyclopedia)Daphnis and Chloë: see Longus.

corns and calluses

(Encyclopedia)corns and calluses, thickenings of the outer layer of skin where there is irritation or constant pressure. Corns are cone-shaped with their points protruding into the dermis, or inner layer of skin. T...

colleges and universities

(Encyclopedia)colleges and universities, institutions of higher education. Universities differ from colleges in that they are larger, have wider curricula, are involved in research activities, and grant graduate an...