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Noun: event horizon
  1. (physics) a surface beyond which an observer cannot be in contact, esp. a surface round a black hole from which no light can (classically) escape from inside

Derived forms: event horizons

Encyclopedia: Event horizon

Nearest

evening-snow
eveningwear
Evenk
Evenki
evenly
evenness
even-pinnate
even-pinnate leaf
evensong
event
event horizon
event planner
even-tempered
eventer
even-textured
eventful
eventide
eventing
eventless
even-toed
even-toed ungulate