supergalaxy

[ soo-per-gal-uh k-see ]
/ ˈsu pərˌgæl ək si /

noun, plural su·per·gal·ax·ies. Astronomy.

a system of galaxies.

Origin of supergalaxy

First recorded in 1925–30; super- + galaxy

OTHER WORDS FROM supergalaxy

su·per·ga·lac·tic [soo-per-guh-lak-tik] /ˌsu pər gəˈlæk tɪk/, adjective