supergalaxy

[soo-per-gal-uh k-see]

Origin of supergalaxy

First recorded in 1925–30; super- + galaxy
Related formssu·per·ga·lac·tic [soo-per-guh-lak-tik] /ˌsu pər gəˈlæk tɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018