Pronunciation: (ā'bul; for 4 also Norw. ä'bul),[key] —n. 1. the second son of Adam and Eve, slain by his brother, Cain. Gen. 4.
2. Sir Frederick Augustus, 1827–1902, English chemist: inventor of cordite.
3. I. W., 1908–87, U.S. labor leader: president of the United Steelworkers of America 1965–77.
4. Niels Hen•rik Pronunciation: (nēls hen'rik),[key] 1802–29, Norwegian mathematician.
5. a male given name.