heijastussumu

== Finnish == === Etymology === heijastus +‎ sumu === Pronunciation === IPA(key): /ˈhei̯jɑstusˌsumu/, [ˈhe̞i̯j(ː)ɑ̝s̠tus̠ˌs̠umu] Rhymes: -umu Syllabification(key): hei‧jas‧tus‧su‧mu Hyphenation(key): hei‧jastus‧sumu === Noun === heijastussumu (astronomy) reflection nebula ==== Declension ====