ground-linen.
1. A line used for bottom-fishing. ? Obsolete.
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the world > food and drink > hunting > fishing > fishing-tackle > fishing-line > [noun] > other types of line
ground-linea1450
ledger-line1653
gildert1681
kipping-linec1686
fly-line1706
night line1726
trout-line1789
train line1828
runner1835
salmon line1850
loop-line1859
stray-line1879
dandy-line1882
kelp line1884
cross-line1891
free line1913
flatline1950
multistrand1960
flatliner1984
a1450 Fysshynge wyth Angle (1883) 22 Ye may angle to hym at all tymys with a grownde lyne.
1704 Dict. Rusticum at Ground-angling The Morning and Evening are the chiefest seasons for the ground Line for Trout.
2. Geometry.† a. The base upon which a diagram is constructed. Obsolete.
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the world > relative properties > number > graph or diagram > [noun] > diagram > base of
ground-line1551
1551 R. Record Pathway to Knowl. i. Defin. When one line lyeth flatte (whiche is named the ground line) and an other commeth downe on it, and is called a perpendiculer.
?a1560 L. Digges Geom. Pract.: Pantometria (1571) i. iii. sig. C j Measure out the like length in the perpendiculare..beginning from the ground line.
1659 T. Willsford Scales of Comm. 118 Let fall a Perpendicular..upon the Basis or ground-line.
b. (See quot. 1857).
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the world > relative properties > number > geometry > line > [noun] > which divides or intersects
midlinea1398
secant1684
section1820
bisectrix1854
ground-line1857
secancy1857
transversal1881
1857 W. Binns Elem. Treat. Orthogr. Projection i. 2 The vertical and horizontal planes are generally divided by a line, called the ground line, or intersecting line of the two planes of projection.
3. plural. Outlines (literal and figurative).
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society > communication > representation > a plastic or graphic representation > graphic representation > drawing plans or diagrams > [noun] > a plan or diagram > outline drawing
draught1593
ground-lines1624
lines1680
1624 H. Wotton Elements Archit. i. 65 Let no man..setle his Fancie vpon a draught of the Worke in paper..much less vpon a bare Plant thereof, as they call the Schiographia or Ground lines.
1858 J. Martineau Stud. Christianity 150 We owe to the deeper Evangelical spirit..the ground-lines of an Ethical philosophy.
Draft additions 1993
4. Show-jumping. The line along the base of a fence formed where the obstacle meets the ground, and used in judging the point of take-off; hence, any marker placed to assist the horse and rider in this way.
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society > leisure > sport > types of sport or game > equestrian sports except racing > [noun] > show-jumping > series or parts of fences
oxer1859
treble1895
ground-line1951
wing1953
1951 M. P. Ansell Show Jumping i. 14 A fence, such as a wall, which rests on the ground, has a distinct ground line: a single rail has no ground line, making this obstacle difficult.
1986 Riding May 30/2 For this we have a placing pole,..then a distance of 10 to 10½ yds to the second fence, which is a parallel with a bold groundline.
This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2020).
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n.a1450