(pl. chumashim) The Torah is divided into five chumashim: Bereshit, Shemot, Vayikra, Bemidbar, Devarim. A volume containing the five chumashim and the haftara for each parasha is also knows as a Chumash. The formal name is Chamisha Chumshei Torah.
חומש
chu~mash
Academic: Ḥumash