Bible Encyclopedias
Aggregation

1911 Encyclopedia Britannica

Search for…

Enter query below:

or

A B C D E F G H I J K L M N O P Q R S T U V W Y Z

Prev Entry
Aggravation

Next Entry
Aggtelek

Resource Toolbox

Print Article

Additional Links

Dictionaries
Webster Dictionary
• Aggrege
• Aggregator
• Aggregative
•   (only first 3 shown)
Encyclopedias
1911 Encyclopedia Britannica
• Aggregation

(from the Lat. ad, to, gregare, to collect together), in physics, a collective term for the forms or states in which matter exists. Three primary "states of aggregation" are recognized - gaseous, liquid and solid. Generally, if a solid be heated to a certain temperature, it melts or fuses, assuming the liquid condition (see Fusion); if the heating be continued the liquid boils and becomes a vapour (see Vaporization). On the other hand, if a gas be sufficiently cooled and compressed, it liquefies; this transition is treated theoretically in the article Condensation Of Gases, and experimentally in the article Liquid Gases.