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Ice Cube

(Encyclopedia) Ice Cube : see Rap music.

Ice Fjord

(Encyclopedia)Ice Fjord, Spitsbergen: see Isfjorden. ...

dry ice

(Encyclopedia)dry ice: see carbon dioxide.

hockey, ice

(Encyclopedia)hockey, ice, team sport in which players use sticks to propel a hard, round disk into a net-backed goal. The NHL long regarded itself as the world's elite, but the overwhelming superiority of the ...

age grade and age set

(Encyclopedia)age grade and age set, differentiation of social role based on age, commonly found in small-scale societies of North America and East Africa. Age sets are a type of sodality (nonresidential groups tha...

Copper Age

(Encyclopedia)Copper Age: see Bronze Age.

Gilded Age

(Encyclopedia)Gilded Age, a term used to describe a period in United States history—from roughly 1870 to 1900—when the wealthy elite consisted of industrialists w...

Iron Age

(Encyclopedia)Iron Age, period in the development of industry that begins with the general use of iron and continues into modern times. In Asia, Egypt, and Europe it was preceded by the Bronze Age. It did not begin...

Bronze Age

(Encyclopedia)Bronze Age, period in the development of technology when metals were first used regularly in the manufacture of tools and weapons. Pure copper and bronze, an alloy of copper and tin, were used indiscr...

mental age

(Encyclopedia)mental age: see intelligence.