1. A semi-transparent graphical and textual display of information projected upon the field of view of a pilot of an aircraft
   - head-up display

Encyclopedia: Heads-up display

• long-sufferance
• long-suffering
• long-tailed porcupine
• long-tailed weasel
• long-term
• long-term memory
• long-wearing
• long-winded
• long-windedly
• long-windedness
• long-wooled
• longan
• longanberry
• longanimity
• longanimous
• longar palm
• longbeard
• longboat
• longbow
• longbowman
• longcase clock
• longe
• longed-for
• longer
• longest