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Walhalla

(Encyclopedia)Walhalla, in Germanic mythology: see Valhalla. ...

Apollo

(Encyclopedia)Apollo əpŏlˈō [key], in Greek religion and mythology, one of the most important Olympian gods, concerned especially with prophecy, medicine, music and poetry, archery, and various bucolic arts, pa...

Magnusson, Finnur

(Encyclopedia)Magnusson, Finnur mägˈno͞osôn [key], 1781–1847, Icelandic archaeologist and scholar. Educated at the Univ. of Copenhagen, he was appointed (1815) professor of Northern literature and mythology ...

Jove

(Encyclopedia)Jove: see Jupiter, in Roman religion and mythology. ...

eider, in zoology

(Encyclopedia)eider: see duck.

diet, in nutrition

(Encyclopedia)diet, food and drink regularly consumed for nourishment. Nutritionists generally recommend eating a wide variety of foods; however, some groups of people survive on a very limited diet. The traditiona...

dike, in technology

(Encyclopedia)dike, in technology: see levee.

dimension, in mathematics

(Encyclopedia)dimension, in mathematics, number of parameters or coordinates required locally to describe points in a mathematical object (usually geometric in character). For example, the space we inhabit is three...

dimension, in physics

(Encyclopedia)dimension, in physics, an expression of the character of a derived quantity in relation to fundamental quantities, without regard for its numerical value. In any system of measurement, such as the met...

Dione, in astronomy

(Encyclopedia)Dione dīōˈnē [key], in astronomy, one of the named moons, or natural satellites, of Saturn. Also known as Saturn IV (or S4), Dione is 695 mi (1,120 km) in diameter, orbits Saturn at a mean distanc...