Blocking may refer to:

Science, technology, and mathematics

Computing and telecommunications

* Blacklist (computing) * Blocking (computing), holding up a task until an event occurs * Blocking (radio), interference by an off-frequency signal *

Blocking probability The erlang (symbol E) is a dimensionless unit that is used in telephony as a measure of offered load or carried load on service-providing elements such as telephone circuits or telephone switching equipment. A single cord circuit has the capac ...

, for calls in a telecommunications system * Head-of-line blocking, in some network switching fabrics *Internet blocking; see

Block (Internet) On the Internet, a block or ban is a technical measure intended to restrict access to information or resources. Blocking and its inverse, unblocking, may be implemented by the owners of computers using software. Some countries, notably China a ...

Psychology

Thought blocking Thought blocking is a type of thought disorder in which a person will suddenly and involuntarily fall silent, or abruptly change to another subject. When thought blocking, some people may express themselves in a manner that is not understandable t ...

, a type of thought disorder *

Blocking effect In Kamin's blocking effect the conditioning of an association between two stimuli, a conditioned stimulus (CS) and an unconditioned stimulus (US) is impaired if, during the conditioning process, the CS is presented together with a second CS tha ...

, in psychology * Mental block, a type of suppression or repression

Other uses in science

* Blocking (linguistics), where the existence of a competing form blocks the application of a morphological process * Blocking (statistics), in the design of experiments, the arranging of experimental units in groups (blocks) which are similar to one another * Atmospheric blocking, a phenomenon in meteorology of large scale stationary pressure cells *Blocking, in the western blot technique, a process to prevent unwanted binding of antibodies to a membrane

Other technologies

* Blocking (construction), short boards used as reinforcement or to provide attachment points in wood-framed and other forms of construction

Sport

* Blocking (American football), the legal interference with another player's motion * Blocking (martial arts), a defensive technique in martial arts

Theatre and film

* Blocking (stage), the movement and positioning of actors on a stage, or within a frame in film * Blocking (animation), a technique in which key poses establish timing and placement of items in a scene

Other uses

* Blocking (textile arts), the process of stretching a knitted garment into shape while wet or using steam *

Blocking (transport) In public transport Public transport (also known as public transportation, public transit, mass transit, or simply transit) is a system of transport for passengers by group travel systems available for use by the general public unlike p ...

, the process of dividing a transit schedule into parts that can be operated by a single vehicle *Blocking troops - military

barrier troops Barrier troops, blocking units, or anti-retreat forces are military units that are located in the rear or on the front line (behind the main forces) to maintain military discipline, prevent the flight of servicemen from the battlefield, capture spi ...

positioned to forestall unauthorised retreats