BLOCKER

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does blocker mean? 

• BLOCKER (noun)
  The noun BLOCKER has 2 senses:

1. a football player whose responsibility is to block players attempting to stop an offensive play

2. a class of drugs that inhibit (block) some biological process

  Familiarity information: BLOCKER used as a noun is rare.

 Dictionary entry details 

• BLOCKER (noun)

Sense 1

Meaning:

A football player whose responsibility is to block players attempting to stop an offensive play

Classified under:

Nouns denoting people

Hypernyms ("blocker" is a kind of...):

football player; footballer (an athlete who plays American football)

Derivation:

block (impede the movement of (an opponent or a ball))

Sense 2

Meaning:

A class of drugs that inhibit (block) some biological process

Classified under:

Nouns denoting man-made objects

Synonyms:

blocker; blocking agent

Hypernyms ("blocker" is a kind of...):

medicament; medication; medicinal drug; medicine ((medicine) something that treats or prevents or alleviates the symptoms of disease)

Hyponyms (each of the following is a kind of "blocker"):

alpha-adrenergic blocker; alpha-adrenergic blocking agent; alpha-blocker; alpha blocker (any of various drugs that block alpha-adrenergic receptors; used in treating benign prostatic hyperplasia; relaxes the muscles of the prostate and bladder)

beta-adrenergic blocker; beta-adrenergic blocking agent; beta-blocking agent; beta blocker (any of various drugs used in treating hypertension or arrhythmia; decreases force and rate of heart contractions by blocking beta-adrenergic receptors of the autonomic nervous system)

labetalol; labetalol hydrochloride; Normodyne; Trandate (antihypertensive drug (trade names Trandate and Normodyne) that blocks alpha and beta-adrenergic receptors of the sympathetic nervous system (leading to a decrease in blood pressure))

neuromuscular blocking agent (a substance that interferes with the neural transmission between motor neurons and skeletal muscles)

Derivation:

block (interrupt the normal function of by means of anesthesia)

 Context examples 

A specific blocker of dopamine receptors.

(Domperidone, NLM, Medical Subject Headings)

Overgrowth of the gingival tissue caused by phenytoin, cyclosporine A, and calcium channel blockers.

(Drug Induced Gingival Hyperplasia, NCI Thesaurus)

Estrogen blockers may stop some cancer cells from growing and are used to prevent and treat breast cancer.

(Estrogen blocker, NCI Dictionary)

A sulfonamide class III antiarrhythmic agent and potassium channel blocker.

(Dofetilide, NCI Thesaurus)

The R-enantiomer of the calcium channel blocker verapamil.

(Dexverapamil, NCI Thesaurus)

This compound is a NMDA receptor antagonist (RECEPTORS, N-METHYL-D-ASPARTATE) and acts as a non-competitive channel blocker.

(Dextromethorphan, NLM, Medical Subject Headings)

This agent does not inhibit monoamine oxidase and, compared to classical tricyclic antidepressants, is a weak blocker of the neuronal uptake of serotonin and norepinephrine.

(Bupropion, NCI Thesaurus)

The determination of the amount of any beta-blocker present in a sample.

(Beta-Blocker Measurement, NCI Thesaurus)

Chlorotoxin (CTX) is a 36-amino acid peptide found in the venom of the deathstalker scorpion, and a chloride channel blocker.

(Chlorotoxin, NCI Thesaurus)

Having a substantial blood pressure lowering capability, Amlodipine Besylate Benazepril Hydrochloride contains a dihydropyridine calcium blocker (amlodipine) and an angiotensin-converting enzyme (ACE) inhibitor (benazepril).

(Amlodipine Besylate/Benazepril Hydrochloride, NCI Thesaurus)