Verse drama and dramatic verse
Verse drama is any drama written as verse to be spoken; another possible general term is poetic drama. For a very long period, verse drama was the dominant form of drama in Europe (and was also important in non-European cultures). Greek tragedy and Racine's plays are written in verse, as is almost all of Shakespeare's drama, Ben Jonson, John Fletcher and others like Goethe's Faust.
Verse drama is particularly associated with the seriousness of tragedy, providing an artistic reason to write in this form, as well as the practical one that verse lines are easier for the actors to memorize exactly. In the second half of the twentieth century verse drama fell almost completely out of fashion with dramatists writing in English (the plays of Christopher Fry and T. S. Eliot being possibly the end of a long tradition).
Dramatic verse
Dramatic verse occurs in a dramatic work, such as a play, composed in poetic form. The tradition of dramatic verse extends at least as far back as ancient Greece.