Jotham (jō`thəm), in the Bible. 1 The only one of Gideon's sons not killed by Abimelech; noted for his parable of the trees electing the bramble to be their king. 2 King of Judah, son of Uzziah. He was a contemporary of Isaiah, Hosea, and Micah. His name is also spelled Joatham. 3 Descendant of Caleb.