View synonyms for bypass


or by-pass

[ bahy-pas, -pahs ]


  1. a road enabling motorists to avoid a city or other heavy traffic points or to drive around an obstruction.
  2. a secondary pipe or other channel connected with a main passage, as for conducting a liquid or gas around a fixture, pipe, or appliance.
  3. Electricity. shunt ( def 9 ).
  4. 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.

verb (used with object)

, by·passed or (Rare) by·past; by·passed or by·past; by·pass·ing.
  1. to avoid (an obstruction, city, etc.) by following a bypass.
  2. to cause (fluid or gas) to follow a secondary pipe or bypass.
  3. to neglect to consult or to ignore the opinion or decision of:

    He bypassed the foreman and took his grievance straight to the owner.


/ ˈbaɪˌpɑːs /


  1. a main road built to avoid a city or other congested area
  2. any system of pipes or conduits for redirecting the flow of a liquid
  3. a means of redirecting the flow of a substance around an appliance through which it would otherwise pass
  4. surgery
    1. the redirection of blood flow, either to avoid a diseased blood vessel or in order to perform heart surgery See coronary bypass
    2. ( as modifier )

      bypass surgery

  5. electronics
    1. an electrical circuit, esp one containing a capacitor, connected in parallel around one or more components, providing an alternative path for certain frequencies
    2. ( as modifier )

      a bypass capacitor


  1. to go around or avoid (a city, obstruction, problem, etc)
  2. to cause (traffic, fluid, etc) to go through a bypass
  3. to proceed without reference to (regulations, a superior, etc); get round; avoid


/ păs′ /

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

Discover More

Other Words From

  • bypasser by-passer noun

Discover More

Word History and Origins

Origin of bypass1

1840–50; apparently back formation from by-passage; by (adj.), passage 1

Discover More

Example Sentences

Last year, after bypass surgery at the age of 40, I came to this pond in a wetsuit on the front edge of April.

Four groins will be placed south of Wisconsin Street to test their effectiveness, along with a sand bypass system to transport pumped sand to beaches via a network of underground pipelines.

Oceanside city leaders voted to test beach groins and a sand bypass system in an effort to save the city’s beaches at a recent Council meeting.

My father had a heart attack in his late 50s and, later, bypass surgery.

The most energy-efficient of these is the bypass humidifier, which extracts the existing moisture from the house’s ductwork and collects it in a tray, where it is evaporated and redistributed.

It has allowed the project to bypass normal due diligence and environmental impact assessments.

In 2005, DOC paid $37,244 for one coronary bypass surgery and $32,897 for one kidney transplant surgery.

Problems so big it only makes common sense for Bieber to bypass any plea offer and move forward with a trial.

With that audience in mind, I hope to hear how the President will bypass Washington gridlock and get some things done.

First, Obama offered that there is “no short-cut to democracy” and that he could not utilize executive orders to bypass Congress.

If the bypass is pulled wide open, the motors beyond do not turn; for the oil fails to reach them.

At will we pass it into our distant motors, allowing some to escape back in this direction through a bypass.

Dark slowed and entered the cloverleaf that took him onto the bypass expressway.

For you tithe mint and rue and every herb, but you bypass justice and the love of God.

Driving the loose horses at full run, the women and children raced toward that bypass.





by one's witsbypass capacitor