blocker


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blocker

 [blok´er]
something that blocks or obstructs a passage or activity; see also antagonist and blocking agent.
β-blocker (beta-blocker) beta-adrenergic blocking agent.
calcium channel blocker calcium channel blocking agent.
potassium channel blocker potassium channel blocking agent.
sodium channel blocker sodium channel blocking agent.

block·er

(blok'er),
An instrument used to obstruct a passage.

blocker

/block·er/ (blok´er) something that blocks or obstructs passage, activity, etc.
α-blocker  alpha-adrenergic blocking agent; see adrenergic blocking agent.
β-blocker  beta-adrenergic blocking agent; see adrenergic blocking agent.
calcium channel blocker  calcium channel blocking agent.
potassium channel blocker  potassium channel blocking agent.
sodium channel blocker  sodium channel blocking agent.

blocker

blocker

A popular term for anything which physically (e.g., a bed blocker, see there) or pharmacologically (e.g., a beta-blocker) impedes a process or activity.

block·er

(blok'ĕr)
1. An instrument used to obstruct a passage.

blocker

something that blocks or obstructs passage, activity, etc.

α-blocker, alpha-blocker
a drug that induces adrenergic blockade at α-adrenergic receptors.
β-blocker, beta-blocker
a drug that induces adrenergic blockade at either β1- or β2-adrenergic receptors, or both (see also beta-blocker).
calcium channel blocker
a drug that selectively inhibits the influx of calcium ions through a specific ion channel of cardiac muscle and smooth muscle cells (see also calcium channel blocker).
H2-receptor blocker
a drug, such as cimetidine that inhibits the secretion of gastric acid stimulated by histamine, pentagastrin, food and insulin, and also basal secretion; used in the treatment of peptic ulcer.
References in periodicals archive ?
Washington, May 14 ( ANI ): Contrary to current thinking, researchers of new study have found that taking beta blockers that treat high blood pressure does not decrease a person's risk of developing colorectal cancer.
The endobronchial blocker was advanced through its anterior channel and directed into the right or left mainstem bronchus under vision with a bronchoscope down the main lumen of the Univent endotracheal tube.
Perioperative [beta] blockers in patients having non-cardiac surgery: a meta-analysis.
Our block will take an area of the court away, most likely where the opposition can attack the ball most effectively, and our defensive players will be situated around the blockers.
Blocker joined the Black Surfing Association (http://home town.
2) Valencia middle blocker Teddy Goetz will provide leadership to a handful of juniors who won 59 games in a row on the junior-varsity the past two years.
This will help the blocker get inside a head-up defender or get his head across a man lined up inside of him on the LOS.
2] blockers are ineffective when used regularly with a proton pump inhibitor to control nocturnal acid breakthroughs in patients with gastroesophageal reflux disease, Dr.
SurModics' StabilBlot Blocker Family offers a range of product options, both protein-based and synthetic-based, to block non-specific binding as well as enhance sensitivity when used as a blocker and antibody diluent.
Since our best pass blocker is usually our best run-blocker as well, it will sometimes tend to make us a left-handed running team.
There are five classes of medications that are considered first-line agents for treatment of hypertension--diuretics beta blockers, alpha adrenergic blockers, calcium channel blockers.
After 6 months, 5 percent of the participants taking an NSAID and the acid blocker had developed an ulcer, compared with 12 percent of those getting an NSAID and a placebo, Scheiman reported at a meeting of the American College of Gastroenterology in Baltimore last month.