heterociclo

heterocycle

noun eh-teh-roh-SEE-kloh Rare

Origin: From Greek heteros (other, different) + kyklos (circle, ring).

Usage Note

Heterociclo is a highly specialised chemistry term referring to a cyclic compound whose ring contains at least one atom other than carbon — such as nitrogen, oxygen, or sulfur. Examples include pyridine and pyrrole. The adjective form is heterocíclico. This word is restricted to academic and scientific registers and will not appear in everyday conversation.

Examples

"La cafeína es un heterociclo de origen natural."

Natural Translation

Caffeine is a naturally occurring heterocycle.

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