Final answer:
Parshat Zachor is a specific Torah portion read on the Shabbat before Purim, remembering the attack by the Amalekites, and is part of the Jewish communal memory and religious practice.
Step-by-step explanation:
The term "Parshat Zachor" refers to a special section of the Torah that is read on the Shabbat before the Jewish holiday of Purim. It is the second of four special Shabbatot that are observed during this time of year. It's important to note that this term does not directly relate to the story of Passover or the Exodus from Egypt, as described in the provided references, but it shares the same foundation in the rich traditions of Jewish history and scripture. Parshat Zachor commands the Jewish people to remember the attack by the Amalekites, and it has been observed for centuries as part of the Jewish communal memory and religious practice.