ScienceAugust 18, 2026

cycloadditions

SY-kloh-uh-DISH-unz

Definition

A chemical reaction in which two or more unsaturated molecules combine to form a cyclic compound with a decrease in the number of multiple bonds.

Etymology

Derived from the Greek word 'kyklos' (circle) and the Latin 'additio' (an adding), referring to the process of forming a ring structure through chemical addition.

In the news

In the article, chemists wonder if the newly synthesized uranium complex can undergo cycloadditions, which would indicate its potential for complex chemical reactivity.

Uranium complex smashes record for consecutive bonds between atoms

Read the full article ↗

Chemistry World

Related words

Learn words like this every day

Meet new words every morning.

Newspoken pulls carefully chosen words from the day’s news — with clear definitions, context, and light review that makes them stick. Get it on your phone.