different between heterocyclic vs heteroarene

English

From hetero- +? cyclic.

heterocyclic (not comparable)

(chemistry, of a cyclic compound) Having atoms of two or more different elements in at least one of its rings.
(organic chemistry, of a cyclic compound) Having one or more atoms other than carbon in at least one of its rings.

heterocyclic (plural heterocyclics)

hetero- +? arene

heteroarene (plural heteroarenes)

(chemistry) any heterocyclic compound formally derived from an arene by replacement of one or more methine and/or vinylene groups by trivalent or divalent heteroatoms respectively in such a way as to retain its aromaticity

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