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Quasar

UK //ˈkweɪzɑː// US //ˈkweɪzɑr// Pronunciation

Definition

A distant celestial object, emitting exceptionally large amounts of energy, often associated with black holes.

Listen to definition

In simple words: A very bright object in space that emits energy.

Examples

• Astronomers discovered a new quasar with unprecedented brightness.
• The light from the quasar took billions of years to reach Earth.
• Quasars are often considered the brightest objects in the universe.
• Studying quasars helps scientists understand the early universe.
• The first quasar was identified in the 1960s, revolutionizing astronomy.

Usage notes

Used primarily in scientific contexts when discussing astronomy. Not appropriate for casual conversation without context.

Grammar pattern

standalone noun

Memory hint

Sounds like 'quiz are' - imagine a quiz about space with bright, shining stars.

Collocations

• observe a quasar
• brightness of a quasar
• quasar emissions

Synonyms

• active galactic nucleus
• AGN
• stellar object

Common mistakes

• Confused with 'quasar' as a term for something ordinary.
• Mispronounced as 'qway-sar' instead of 'kwey-zar'.
• Incorrectly pluralized as 'quasars' when discussing multiple types.