• Programming language created by Rich Hickey
• Clojure is a Lisp dialect
• Clojure compiler is an executable JAR file, clojure.jar, which takes code written in the Clojure language and compiles it to Java Virtual Machine (JVM) bytecode
• Clojure is a hosted language
  • Its programs are executed within a JVM and rely on the JVM for core features
  • Clojure also targets JavaScript and Microsoft Common Language Runtime (CLR)