/sun"ruyz'/ , n.
1. the rise or ascent of the sun above the horizon in the morning.
2. the atmospheric and scenic phenomena accompanying this.
3. the time when half the sun has risen above the horizon.
4. the open or beginning stage of any period.
adj.
5. (of an industry, technology, etc.) new and growing; developing; emerging: high-technology sunrise industries.
[ 1300-50; ME, short for sunrising (see SUN, RISE, -ING 1 ) ]