greyline

English

Alternative forms

Etymology

From grey +‎ line.

Noun

greyline (uncountable)

  1. (strictly, technical) A transition line, coinciding with a twilight zone (terminator), where a change in the propagation of radio waves is observed.
  2. (loosely) Synonym of twilight zone (“terminator”).
This article is issued from Wiktionary. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.