Even Ha'ezer
is a section of Rabbi Jacob ben Asher's compilation of halakha, Arba'ah Turim. This section treats aspects of Jewish law related to marriage, divorce, and sexual conduct. Later, Rabbi Yosef Karo modeled the framework of his own compilation of practical Jewish law, the Shulchan Aruch, after the Arba'ah Turim. Many later commentators used this framework as well. Thus, "Even Ha'ezer" in common usage may refer to an area of halakha non-specific to Rabbi Jacob ben Asher's compilation.
