Definition of H-R diagram in English:

H-R diagram

noun eɪtʃˈaː ˌdʌɪəɡram

Astronomy

1930s. From the initial letters of Hertzsprung–Russell + diagram, as shortened form of Hertzsprung–Russell diagram.

nouneɪtʃˈaː ˌdʌɪəɡram

Astronomy

1930s. From the initial letters of Hertzsprung–Russell + diagram, as shortened form of Hertzsprung–Russell diagram.

词汇	H-R diagram
释义	Definition of H-R diagram in English: H-R diagram noun eɪtʃˈaː ˌdʌɪəɡram Astronomy Hertzsprung–Russell diagram. Origin 1930s. From the initial letters of Hertzsprung–Russell + diagram, as shortened form of Hertzsprung–Russell diagram. Definition of H-R diagram in US English: H-R diagram nouneɪtʃˈaː ˌdʌɪəɡram Astronomy Hertzsprung–Russell diagram. Origin 1930s. From the initial letters of Hertzsprung–Russell + diagram, as shortened form of Hertzsprung–Russell diagram.
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