|the offspring of a zebra and a donkey.|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
|a modern philosophical movement stressing the importance of personal experience and responsibility and the demands that they make on the individual, who is seen as a free agent in a deterministic and seemingly meaningless universe|
A movement in twentieth-century literature and philosophy, with some forerunners in earlier centuries. Existentialism stresses that people are entirely free and therefore responsible for what they make of themselves. With this responsibility comes a profound anguish or dread. Søren Kierkegaard and Feodor Dostoevsky in the nineteenth century, and Jean-Paul Sartre, Martin Heidegger, and Albert Camus in the twentieth century, were existentialist writers.