Meforshim is a Hebrew word meaning "(classical rabbinical) commentators" (or roughly meaning "exegetes"), and is used as a substitute for the correct word perushim which means "commentaries". In Judaism this term refers to commentaries on the Torah (five books of Moses), Tanakh, the Mishnah, the Talmud, responsa, even the siddur (Jewish prayerbook), and more.
Read more about this topic: Rabbinic Literature