Something that blocks, prevents, separates, or limits.

An overt or covert obstacle; used in employment equity to mean a systemic obstacle to equal employment opportunities or outcomes; an obstacle which must be overcome for equality to be possible.

Any obstruction to the spread of fire. Typically an area or strip devoid of combustible fuel. 

The safe enclosure of the radioactive inventory of a nuclear plant is structured according to the multiple barrier principle, i.e. radioactive substances must pass these multiple different barriers co [..]

early 14c., barere, from Anglo-French barrere, Old French barriere "obstacle, gatekeeper," from barre "bar" (see bar (n.1)). First record of barrier reef is from 1805.

Something that bars or keeps out. Barrier pillars are solid blocks of coal left between two mines or sections of a mine to prevent accidents due to inrushes of water, gas, or from explosions or a mine [..]

obstacle or object that prevents movement.

In polar terminology, an early term for ice shelf; first used by Sir James Clark Ross for the face of the Antarctic ice shelf later named for him, Ross Barrier.

a structure or object that impedes free movement any condition that makes it difficult to make progress or to achieve an objective; "intolerance is a barrier to understanding&quot [..]

1. Any impediment to the international movement of goods, services, capital, or other factors of production. Most commonly a trade barrier. 2. An entry barrier.

something, like a fence or wall, that stops one from going further

Protection from deterioration or admittance of moisture or other elements (such as oxygen and other gases) through the package material. Barriers can consist of an additive to the resin or a coating o [..]

Definition anything which makes it difficult for someone to do something, especially to send goods from one place to another

n. anything that blocks or impedes the flow of material- something that delays or restricts a person from achieving a set goal or objective. Psychologically speaking, a barrier may limit you individua [..]

something which restricts, impedes, slows, or blocks progress of an ultimate objective or end. In a psychological context, barriers could refer to emotional, behavioural or general mental barriers obs [..]

barrier (pop)

Anything used to control, prevent, or impede energy flows.  Includes engineering (physical, equipment design) and administrative (procedures and work processes). See also  Layer of Protection.

A starting device used in steeplechasing consisting of an elastic band stretched across the racetrack which springs back when released. Also known as a "tape."

A boundary wall, many times with steel reinforcement inside the concrete structure. Typically used in highway medians to separate opposing traffic.

Physical obstacles, policies, practices or procedures that restrict or exclude persons in designated groups or those protected by the Canadian Human Rights Act from employment-related opportunities in the federal public service.

Any obstacle to reaching a goal, adaptation or mitigation potential that can be overcome or attenuated by a policy, program, or measure. Barrier removal includes correcting market failures directly or [..]

selling by public shareholders, who purchased their stock at or near the peak of the last upward move of the company's share price. This selling usually results from a major decline in the compan [..]

According to 15 USCS § 8002 (2), [Title 15. Commerce and Trade; Chapter 106. Pool and Spa Safety] the term barrier includes “a natural or constructed topographical feature that prevents unpermitted ac [..]

(n) a structure or object that impedes free movement(n) any condition that makes it difficult to make progress or to achieve an objective(n) anything serving to maintain separation by obstructing visi [..]

A starting device used in steeplechase, a barrier consists of an elastic band stretched across the racetrack, which springs back when released. Also known as a tape.

A physical structure used to separate people from a restricted area.

An obstruction, usually artificial, in a river. eg Thames Barrier.

Island: A wave-built deposit of mainly sand, raised above sea level by constructive wave action and separated from the shore by a bay or estuary.

A device which provides a physical limitation, through which a vehicle would not normally pass, and is intended to contain or redirect an errant vehicle of a particular size range, at a given speed an [..]

A structure installed to protect an environmentally sensitive area. A barrier can be hard (fence); live (planted); a combination of hard and live; or a terrain feature (berm). A barrier can be physical (obstructing passage) or psychological (deterring access).

An enclosing device around an elevated platform to prevent accidental and purposeful attempts to move through the device.

a first act obstacle in the way of a protagonist’s objective.

The barrier between Capillary Blood and alveolar air comprising the alveolar Epithelium and Capillary Endothelium with their adherent Basement Membrane and Epithelial Cell Cytoplasm. Pulmonary Gas Exc [..]

The selectively permeable barrier, in the EYE, formed by the nonpigmented layer of the Epithelium of the Ciliary Body, and the Endothelium of the Blood Vessels of the Iris. Tight Junctions joining adj [..]

The barrier between the perineurium of Peripheral Nerves and the Endothelium (Endothelium, Vascular) of endoneurial Capillaries. The perineurium acts as a Diffusion barrier, but ion Permeability at th [..]

Those factors, such as Language or sociocultural relationships, which interfere in the meaningful interpretation and transmission of ideas between individuals or groups.

A specialized barrier in the Kidney, consisting of the fenestrated Capillary Endothelium; Glomerular Basement Membrane; and glomerular Epithelium (Podocytes). The barrier prevents the Filtration of Pl [..]

Specialized non-fenestrated tightly-joined Endothelial Cells with Tight Junctions that form a transport barrier for certain substances between the cerebral Capillaries and the Brain Tissue.

A specialized transport barrier, in the EYE, formed by the Retinal Pigment Epithelium, and the Endothelium of the Blood Vessels of the Retina. Tight Junctions joining adjacent Cells keep the barrier b [..]

A specialized barrier, in the Testis, between the interstitial Blood compartment and the adluminal compartment of the Seminiferous Tubules. The barrier is formed by layers of Cells from the Vascular E [..]

 anything that prevents a person from fully taking part in all aspects of society, including physical, architectural, information or communications, attitudinal, economic and technological barriers, a [..]

In packaging, this term is most commonly used to describe the ability of a material to stop or retard the passage of atmospheric gases, water vapor, and volatile flavor and aroma ingredients. A barrie [..]

Something that blocks, prevents, separates, or limits.

Something that stops or blocks things from going past it. Condoms

A synchronization mechanism applied to groups of units of execution (UEs), with the property that no UE in the group may pass the barrier until all UEs in the group have reached the barrier. In other [..]

WINDS

(class uvm_barrier) — an object that causes a set of processes to be blocked until a specified number of processes reach the barrier, at which point all processes waiting at the barrier are allowed to [..]

A part providing a defined degree of protection against contact with live parts from any usual direction of access.

Something which prevents progress or creates a disadvantage for individuals or groups who share a protected characteristic.