SIDRAH (Heb. סִדְרָה; "order," "arrangement"), popular term for the sections of the Pentateuch, read publicly in the synagogue on the Sabbath (see *Torah, Reading of). The term is found in talmudic literature to mean both "weekly portions" (Shab. 116b; Yoma 87a; tj, Ta'an. 1:6, 64c), and schools in which sections of the Scriptures are read and interpreted (tj, Ber. 3:1, 6b; tj, Beẓah 1:6, 60c). In its Aramaic form (סִדְרָא, sidra) it can also refer to each of the six sections into which the Mishnah is divided.
"Sidrah." Encyclopaedia Judaica. . Encyclopedia.com. (March 19, 2019). https://www.encyclopedia.com/religion/encyclopedias-almanacs-transcripts-and-maps/sidrah
"Sidrah." Encyclopaedia Judaica. . Retrieved March 19, 2019 from Encyclopedia.com: https://www.encyclopedia.com/religion/encyclopedias-almanacs-transcripts-and-maps/sidrah