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[in-ter-sekt] /ˌɪn tərˈsɛkt/
verb (used with object)
to cut or divide by passing through or across:
The highway intersects the town.
verb (used without object)
to cross, as lines or wires.
Geometry. to have one or more points in common:
intersecting lines.
1605-15; < Latin intersectus past participle of intersecāre to cut through, sever. See inter-, -sect
Related forms
nonintersecting, adjective
self-intersecting, adjective
unintersected, adjective
unintersecting, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for intersecting
  • Next, they traced a grid with lines intersecting every half-inch or so and scanned the model's data set into the computer.
  • One solution would be to drill a second intersecting borehole before exploiting the site.
  • The layers of intersecting patterns at work in this place were extraordinarily rich.
  • You've illustrated the difference between a non-self-intersecting curve and a self-intersecting one.
  • The fact that two curves are intersecting does not mean that their positions may not change in a week.
  • The world was still empty enough for empires to expand without intersecting.
British Dictionary definitions for intersecting


to divide, cut, or mark off by passing through or across
(esp of roads) to cross (each other)
(maths) (often foll by with) to have one or more points in common (with another configuration)
Word Origin
C17: from Latin intersecāre to divide, from inter- + secāre to cut
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for intersecting



1610s, back-formation from intersection, or else from Latin intersectus, past participle of intersecare "intersect, cut asunder," from inter- "between" (see inter-) + secare "to cut" (see section (n.)). Related: Intersected; intersecting.


1650s, from Latin intersectum (see intersect (v.)).

Online Etymology Dictionary, © 2010 Douglas Harper
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