From Wiktionary, the free dictionary
Blend of black metal + shoegaze
blackgaze (uncountable)
- (music) A fusion music genre combining elements of black metal and shoegaze.
2015 October 5, Tom Howells, “Blackgaze: meet the bands taking black metal out of the shadows”, in The Guardian[1], →ISSN:California’s Deafheaven are blackgaze’s de facto poster boys, the most likely to open up black metal to an even wider audience.