Possible Definitions:
1. Disaster (n.) An unpropitious or baleful aspect of a planet or star; malevolent influence of a heavenly body; hence, an ill portent.
2. Disaster (n.) An adverse or unfortunate event, esp. a sudden and extraordinary misfortune; a calamity; a serious mishap.
3. Disaster (v. t.) To blast by the influence of a baleful star.
4. Disaster (v. t.) To bring harm upon; to injure.