different between dihydrogenated vs dihydrophenanthrene

English

di- +? hydrogenated

dihydrogenated (not comparable)

(chemistry) hydrogenated with the addition of two atoms of hydrogen per molecule

dihydro +? phenanthrene

dihydrophenanthrene (countable and uncountable, plural dihydrophenanthrenes)

(organic chemistry) The dihydrogenated product of phenanthrene, 9,10-dihydrophenanthrene, that is formed during oil refining

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