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Definition of H II region
1. Noun. (astronomy) A large nebula of gas and plasma of glowing low density in which star formation has recently taken place. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of H II Region
HVAC HVA test HVC HVPT HVS HW HWOB HXT HYIP HYL kinase | HYP HYPS HYPSD HYPSM HYPSMC H II region H II regions H agglutinin H and D curve H chain | H colony H disk H fields H gene H graft H rays H reflex H shunt Ha'erbin HaShem |