barrier

IPA: bˈæriɝ

A structure that bars passage.
An obstacle or impediment.
A boundary or limit.
(grammar) A node (in government and binding theory) said to intervene between other nodes A and B if it is a potential governor for B, c-commands B, and does not c-command A.
(physiology) A separation between two areas of the body where specialized cells allow the entry of certain substances but prevent the entry of others.
(historical) The lists in a tournament.
(historical, in the plural) A martial exercise of the 15th and 16th centuries.
A surname from French.

Examples of "barrier" in Sentences

The barrier is inherent to the system.
The amulet was created to mend the barriers.
Mars is a huge barrier to space exploration.
The cells are the minimum barrier to diffuse.
Model of the absorption across the skin barrier.
No, it doesn't, but it's not an insuperable barrier.
The barrier is obvious and virtually insurmountable.
No, it appears to refer to the barrier to miscegenation.
Humans and weaker vampires are oblivious of the barrier.
It's about attitudes that the barrier is the disability.
The inner wall member comprises an impermeable barrier layer.
It contributes to the reformation of the gastric mucosal barrier.
Study says police must undo community distrust, which it calls a barrier to outreach
Do try to understand that the "barrier" is this: we don't much like to be around benders.
I think the term barrier is a more accurate description of a concept David is alluding to.
He pushes them through the pain barrier and they are trying to please Matthew by doing this.
I was given a phone number and reached a Ryan who proceeds to tell me that what I call a barrier on my porch is not considered a barrier.
The barrier is under fire and more solicitors are realising their responsibility to the profession but the problem of doing adequate justice by the clerks remains.
They also warned, among other things, that nanotechnologies could overcome the blood – brain barrier and "exploit existing transport mechanisms to transmit substances into the brain in analogy with the Trojan horse".