Definitions from Wiktionary (Grayline)
▸ noun: Alternative spelling of greyline [(strictly, technical) A transition line, coinciding with a twilight zone (terminator), where a change in the propagation of radio waves is observed.]
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▸ noun: Alternative spelling of greyline [(strictly, technical) A transition line, coinciding with a twilight zone (terminator), where a change in the propagation of radio waves is observed.]
Similar:
battle-line,
slugline,
bee-line,
trendline,
downline,
night light,
guy line,
zig-zag,
tram line,
gunline,
more...
Opposite:
Types:
▸ Words similar to grayline
▸ Usage examples for grayline
▸ Idioms related to grayline
▸ Wikipedia articles (New!)
▸ Popular adjectives describing grayline
▸ Words that often appear near grayline
▸ Rhymes of grayline
▸ Invented words related to grayline