/owt"brayk'/ , n.
1. a sudden breaking out or occurrence; eruption: the outbreak of war.
2. a sudden and active manifestation: an outbreak of hives.
3. an outburst: an outbreak of temper.
4. an insurrection, revolt, or mutiny.
5. a public disturbance; riot.
[ 1595-1605; OUT- + BREAK ]