isogonic line
— Noun
– English
～ an imaginary line connecting points on the Earth's surface where the magnetic declination is the same
isoclinic line
— Noun
– English
～ an isogram connecting points of equal magnetic inclination
isogonal line
— Noun
– English
～ an imaginary line connecting points on the Earth's surface where the magnetic declination is the same
isometric line
— Noun
– English
～ a line connecting isometric points
International Date Line
— Noun
– English
～ an imaginary line on the surface of the earth following (approximately) the 180th meridian
in line
— Adverb
– English
～ one behind another in a line or queue; "they waited in line for the tickets"
in line
— Adjective
– English
～ awaiting something; especially something due; "people were in line at the checkout counter"; "she was in line for promotion"
in line
— Adjective
– English
～ being next in a line of succession; "he was in line for the presidency"