\Del"la Crus"ca\
A shortened form of Accademia della Crusca, an academy in
Florence, Italy, founded in the 16th century, especially for
conserving the purity of the Italian language.
Note: The Accademia della Crusca (literally, academy of the
      bran or chaff) was so called in allusion to its chief
      object of bolting or purifying the national language.