Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. the narrow band of dusk and dawn that separates the areas in daylight from those in darkness throughout the world

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From grey +‎ line.

Examples

  • Best mobile DX was two ZL's one morning on the way home from work using greyline prop on 75 meters.

    eHam.net News

Comments

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