A libel is a defamation expressed in written or other graphic form that tends to blacken the memory of the dead or that tends to injure a living person's reputation and thereby expose the person to public hatred, contempt or ridicule, or financial injury or to impeach any person's honesty, integrity, virtue, or reputation or to publish the natural defects of anyone and thereby expose the person to public hatred, ridicule, or financial injury.
Tex. Civ. Prac. and Rem. Code § 73.001