Final answer:
The small cell formed during each meiotic division of an oocyte, which typically disintegrates, is called a polar body.
Step-by-step explanation:
The small cell formed during each meiotic division of an oocyte, which typically disintegrates, is called a polar body. The primary oocyte starts meiosis and is arrested in its progress in the first prophase stage. At adolescence, the primary oocyte finishes the first meiotic division, resulting in the formation of a secondary oocyte and a polar body. The polar body usually dies, and the secondary oocyte continues through meiosis II.