What is the meaning of islamic jihad?

noun

• A Shiite terrorist organization with strong ties to Iran; seeks to create an Iranian fundamentalist Islamic state in Lebanon; car bombs are the signature weapon.
  • synonyms: Hizballah, Hezbollah, Hizbollah, Hizbullah, Lebanese Hizballah, Party of God, Islamic Jihad for the Liberation of Palestine, Revolutionary Justice Organization, Organization of the Oppressed on Earth
• An Islamic extremist group active since the late 1970s; seeks to overthrow the Egyptian government and replace it with an Islamic state; works in small underground cells.
  • usage: "the original Jihad was responsible for the assassination of Anwar Sadat in 1981"
  • synonyms: al-Jihad, Egyptian Islamic Jihad, Vanguards of Conquest