Blocking may refer to:

Science, technology, and mathematics

Computing and telecommunications

Blocking (computing) In computing, a process is an instance of a computer program that is being executed. A process always exists in exactly one process state. A process that is blocked is one that is waiting for some event, such as a resource becoming available or ...

, holding up a task until an event occurs *

Blocking (radio) In radio, and wireless communications in general, blocking is a condition in a receiver in which an off-frequency signal (generally further off-frequency than the immediately adjacent channel) causes the signal of interest to be suppressed. Block ...

, interference by an off-frequency signal * Blocking probability, for calls in a telecommunications system * Head-of-line blocking, in some network switching fabrics *Internet blocking; see Block (Internet)

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 The western blot (sometimes called the protein immunoblot), or western blotting, is a widely used analytical technique in molecular biology and immunogenetics to detect specific proteins in a sample of tissue homogenate or extract. Besides detect ...

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) In martial arts, blocking is the act of stopping or deflecting an opponent's attack for the purpose of preventing injurious contact with the body. A block usually consists of placing a limb across the line of the attack. Examples in specific a ...

, 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) Blocking is an animation technique in which key poses are created to establish timing and placement of characters and props in a given scene or shot. This technique is most commonly used in 3D computer animation, where it is sometimes referred t ...

, 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, blocking is the practice of dividing the parts of a scheduled route among vehicles and drivers. It follows the process of dividing the route into trips. In blocking, these trips are pieced together into blocks that are relati ...

, 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