Yerkish
Yerkish adjective Relating to Yerkish an artificial language of visual symbols created for experimental communication between chimpanzees and humans [Late 20th century. After Robert Mearns Yerkes]
Yerkish adjective Relating to Yerkish an artificial language of visual symbols created for experimental communication between chimpanzees and humans [Late 20th century. After Robert Mearns Yerkes]