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H___________
Definitions
containing a closed ring of atoms of which at least one is not a carbon atom
Word origin
From hetero- + cyclic.
Used in a sentence
“Other highly effective heterocyclic substituents were pyrazinyl and quinoxalyl.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer0 curated clues
No curated clues for heterocyclic yet.