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a road enabling motorists to avoid a city or other heavy traffic points or to drive around an obstruction.
a secondary pipe or other channel connected with a main passage, as for conducting a liquid or gas around a fixture, pipe, or appliance.
Electricity, shunt (def 9).
a surgical procedure in which a diseased or obstructed hollow organ is temporarily or permanently circumvented.
Compare coronary bypass, gastric bypass, heart-lung machine, intestinal bypass.
to avoid (an obstruction, city, etc.) by following a bypass.
to cause (fluid or gas) to follow a secondary pipe or bypass.
to neglect to consult or to ignore the opinion or decision of:
He bypassed the foreman and took his grievance straight to the owner.
a main road built to avoid a city or other congested area
any system of pipes or conduits for redirecting the flow of a liquid
a means of redirecting the flow of a substance around an appliance through which it would otherwise pass

the redirection of blood flow, either to avoid a diseased blood vessel or in order to perform heart surgery See coronary bypass
(as modifier): bypass surgery


an electrical circuit, esp one containing a capacitor, connected in parallel around one or more components, providing an alternative path for certain frequencies
(as modifier): a bypass capacitor

verb (transitive) -passes, -passing, -passed, -past
to go around or avoid (a city, obstruction, problem, etc)
to cause (traffic, fluid, etc) to go through a bypass
to proceed without reference to (regulations, a superior, etc); get round; avoid


A passage created surgically to divert the flow of blood or other bodily fluid or to circumvent an obstructed or diseased organ.


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