What is a Ghazal?

If you search the term "Ghazal" you are bound to find numerous meanings of what it is. The closest definition to it is taken from Answers.com and is defined as "a short lyric poem written in couplets using a single rhyme (aa, ba, ca, da etc.), sometimes mentioning the poet's name in the last couplet."

Definition of Ghazal taken from: Answers.com