ZW

ZW or zw may refer to:

Science

  • ZW sex-determination system, chromosomal in birds and some species of reptile, fish, and insect
  • Zettawatt (ZW), an SI unit of power, 10+21 watts
  • Zeptowatt (zW), an SI unit of power, 10−21 watts
  • Zwicky Catalogue (abbreviated: Zw), the "Catalogue of Galaxies and of Clusters of Galaxies"

Groups, organizations

Other uses

  • Zimbabwe (ISO 3166-1 alpha-2 country code ZW), a country in Africa

See also