The definition of apb is an abbreviation for "all points bulletin," which is a notification among police agencies about a wanted person. The apb will usually describe the suspect and provide directions regarding the apprehension.
An example of an APB would be a call from one police station to another indicating a known gangmember in their district is suspect of a crime and wanted for questioning or arrest.
all-points bulletin: a general bulletin sent to law-enforcement agencies, as one describing a wanted person
- There, my family put out an APB for a good midwife with reasonable rates.
- I just put an APB out on it.
- Let APB be a semicircle, BT the tangent at B, and APT a line cutting the circle in and BT at T; take a point Q on AT so that AQ always equals PT; then the locus of Q is the cissoid.