Trend of philosophical thought, also often called "neopositivism" and "logical empiricism," which began in the 1920s with the Vienna Circle. Its key tenet was the verifiability criterion, according to which no statement has any meaning beyond the manner in which it is verified.
Philosophers strongly identified with the logical positivist movement of 20th-century philosophy.
A prominent group of scientists and philosophers who met regularly in Vienna from 1922 to 1936. Their approach came to be termed "logical positivism."