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n. pl. ha·man·tasch·en (-tä′shən)
A triangular pastry with a filling such as preserves or poppy seeds, traditionally served in Jewish communities around Purim.
[Yiddish homentash, probably alteration (influenced by post-Biblical Hebrew 'oznê Hāmān, hamantaschen, literally "Haman's ears") of a Yiddish word akin to German Mohntasche, poppy-seed pastry : Mohn, poppy (from Middle High German māhen, from Old High German; akin to Greek mēkōn), Tasche, pocket, pouch (from Middle High German, from Old High German tasca, of unknown origin).]
(Cookery) Judaism a pastry, triangular in shape, that contains various types of filling, including prunes and poppy seeds, and is traditionally eaten at the Jewish festival of Purim