types:
scheiding
a line of scalp that can be seen when sections of hair are combed in opposite directions
boomgrens
line marking the upper limit of tree growth in mountains or northern latitudes
sneeuwgrens
the line on a mountain above which there is perpetual snow and ice
loxodroom
a line on a sphere that cuts all meridians at the same angle; the path taken by a ship or plane that maintains a constant compass direction
waterlijn
a line corresponding to the surface of the water when the vessel is afloat on an even keel; often painted on the hull of a ship
omloop,
parcours,
track
(computer science) one of the circular magnetic paths on a magnetic disk that serve as a guide for writing and reading data
gezichtsas,
oogas
a line that passes through the center of curvature of a lens so that light is neither reflected nor refracted
poolcirkel
a line of latitude at the north or south poles
buslijn
the route regularly followed by a passenger bus
ecliptica,
zonnecirkel
the great circle representing the apparent annual path of the sun; the plane of the Earth's orbit around the sun; makes an angle of about 23 degrees with the equator
isobaar
(meteorology)an isogram connecting points having equal barometric pressure at a given time
isotherm
(meteorology) an isogram connecting points having the same temperature at a given time
marsroute
the route along which a column advances
diepgangsmerk,
laadlijn
waterlines to show the level the water should reach when the ship is properly loaded
lengtecirkel,
meridiaan,
middaglijn
an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator
keerkring
either of two parallels of latitude about 23.5 degrees to the north and south of the equator representing the points farthest north and south at which the sun can shine directly overhead and constituting the boundaries of the Torrid Zone or tropics
singel
a path or strip (as cut by one course of mowing)