nuclear

word

/ˈnukɫiɝ/
NOO-klee-ur
/njˈuːkliə/
NYOO-klee-uh

Definition

Related to the nucleus of an atom or to energy and weapons produced by atomic reactions. It can also mean related to the central or most important part of something in technical contexts.

Usage & Nuances

Most commonly used in phrases like 'nuclear power', 'nuclear energy', 'nuclear weapon', and 'nuclear reactor'. In everyday English, it is strongly associated with atoms, electricity, war, and safety risks. Be careful with pronunciation: many native speakers say both /ˈnuːkliər/ and /ˈnjuːkliər/; learners should avoid the nonstandard 'nucular'.

Example Sentences

This country uses nuclear energy to make electricity.

basic

They are building a new nuclear plant near the coast.

basic

People worry about nuclear weapons.

basic

After the accident, public trust in nuclear power dropped fast.

natural

The two countries are back at the table to discuss their nuclear program.

natural

He works in nuclear medicine at a large hospital.

natural