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TAKE THE QUIZnaphthacene
noun
naph·tha·cene
ˈnafthəˌsēn,
÷ ˈnapth-
plural -s
: an orange crystalline tetracyclic hydrocarbon C18H12 isomeric with chrysene and benzanthracene and present in small amounts in coal tar
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Merriam-Webster unabridged
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- Often used to describe “the march of time,” what does inexorable mean?


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