Definition of intersect verb from the Oxford Advanced Learner's Dictionary. [intransitive, transitive] (of lines, roads, etc.) to meet or cross each other. The lines intersect at right angles. intersect with something The path intersected with a busy road.
You can also say that one line or road intersects another. The orbit of this comet intersects the orbit of the Earth. [VERB noun] The circles will intersect in two places. [VERB] The centre of the city is full of tiny intersecting alley-ways. [VERB -ing]
To cut into or between; to cut or cross mutually; to divide into parts. Parallel lines don't intersect. Any two diameters of a circle intersect each other at the centre.
intersect /ˌɪntəˈsɛkt/ vb to divide, cut, or mark off by passing through or across (esp of roads) to cross (each other) (often followed by with) to have one or more points in common (with another configuration) Etymology: 17th Century: from Latin intersecāre to divide, from inter- + secāre to cut