2. Noun. Advent, arrival, approach; onset ¹
3. Noun. The commencement or initial stages of a business, especially of one which requires great exertion. ¹
4. Noun. The setting about of an action; development; progress. ¹
5. Noun. An attack; an attack or onset of a disease, fit, or episode. ¹
6. Noun. (dialectal) A mysterious disease or ailment. ¹
7. Noun. (dialectal) A heavy fall of rain or snow; cloudburst. ¹
8. Noun. (context: of a chimney) The lower edge of a fire-clay lining piece. ¹
¹ Source: wiktionary.com
Definition of Oncome
1. a coming on [n -S]