BLOCKER

Pronunciation (US): (GB):

I. (noun)

Sense 1

Meaning:

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

Synonyms:

blocker; blocking agent

Classified under:

Nouns denoting man-made objects

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)

Sense 2

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))

Credits

Context examples:

The mechanism of action of isoxsuprine hydrochloride is controversial, because isoxsuprine has beta-adrenergic activities that could not be offset by beta-adrenergic blockers.

(Isoxsuprine, NCI Thesaurus)

The mechanism of action of isoxsuprine hydrochloride is controversial because this drug has beta-adrenergic agonist activities that are not reversed by beta-adrenergic blockers.

(Isoxsuprine Hydrochloride, NCI Thesaurus)

A synthetic dihydropyridine and a calcium channel blocker with antihypertensive and antianginal properties.

(Amlodipine, NCI Thesaurus)

Belongs to a family of drugs called calcium channel blockers.

(Nimodipine, NCI Dictionary)

A dihydropyridine derivative and an analogue of the calcium channel blocker nifedipine, with antihypertensive activity.

(Nimodipine, NCI Thesaurus)

A dihydropyridine calcium channel blockers with antihypertensive and vasodilator activities.

(Isradipine, NCI Thesaurus)

It is a type of alpha blocker.

(Flomax, NCI Dictionary)

Doxazosin mesylate is a type of alpha blocker.

(Doxazosin mesylate, NCI Dictionary)

Doxazosin is a type of alpha blocker.

(Doxazosin, NCI Dictionary)

Cardura is a type of alpha blocker.