kr

Học thuật
Thân thiện
Definition
  1. Proper noun:

    • Khmer Rouge: A communist political and military organization in Cambodia. It is most infamously known for its brutal regime from 1975 to 1979, which led to widespread atrocities and mass casualties.
  2. Symbol (Chemistry):

    • Krypton: The chemical symbol for a noble gas element. It is a colorless, odorless, inert gas present in very small quantities in the Earth's atmosphere.
Usage Examples
  • Proper noun (Khmer Rouge):
    • The KR regime was responsible for one of the 20th century's most devastating genocides.
    • Historians study the rise and fall of the KR.
  • Symbol (Krypton):
    • Kr is used in certain types of high-performance lighting.
    • The atmosphere contains about 1 part per million of Kr.
Advanced Usage
  • The abbreviation KR is primarily used in historical and political contexts to refer specifically to the Cambodian organization. In scientific contexts, Kr is always used as a symbol and is not spelled out.
Variants and Related Words
  • Khmer Rouge: The full name of the organization abbreviated as KR.
  • Krypton: The full name of the chemical element represented by the symbol Kr.
  • Noble gas: The family of inert gases to which krypton (Kr) belongs.
Synonyms
  • For KR (organization): Pol Pot regime, Communist Party of Kampuchea (CPK).
  • For Kr (element): (None, as it is a specific element symbol)
Notes on Meaning
  • The meaning of "kr" is entirely dependent on context. In standard writing, "KR" (often capitalized) refers to the political group, while "Kr" (with a lowercase 'r') is the chemical symbol. They are distinct entities with no relation.
  • It is not a standard English word but an abbreviation or a symbol.
Noun
  1. a communist organization formed in Cambodia in 1970; became a terrorist organization in 1975 when it captured Phnom Penh and created a government that killed an estimated three million people; was defeated by Vietnamese troops but remained active until 1999
  2. a colorless element that is one of the six inert gasses; occurs in trace amounts in air