event horizon
/əˈvɛnt həˈɹaɪ.zən/
Word Rarity
Uncommon
Frequency: 4.04 in modern English
27
Scrabble Score
12
Letters
3
Syllables
9
Unique Chars
Meaning
noun
The gravitational sphere of a black hole within which the escape velocity is greater than the speed of light.
noun
The furthest distance in the past of the universe from which light signals from an event can reach an observer at later times.
noun
Regional Pronunciation
- American English: /əˈvɛnt həˈɹaɪ.zən/