blocker

[ blok-er ]

Phonetic (Standard)IPA

noun

a person or thing that blocks.
Football. a player whose assignment or special skill is blocking. block.
Biochemistry. a substance that inhibits the physiological action of another substance, as the beta blocker propranolol that interferes with neurotransmitters in the sympathetic nervous system.

blocker

/ ˈblɒkə /

a person or thing that acts as a block
physiol an agent that blocks a physiological function, such as the transport of an ion across an ion channel

Origin of blocker¹

Middle English word dating back to 1200–50; block, -er ¹

The former NFL linebacker is known for his starring role in Old Spice "Odor Blocker Body Wash" ads.

Their work has focused on Propranolol, a beta-blocker that has been on the market for several years to treat hypertension.

You have tried to block me every way you could, and you're a regular little prize blocker.

Returning from the herd shortly after his arrival, I recognized in our guest John Blocker, a prominent drover.

Mr. Blocker's Bat, which he carried through a whole season without scoring once off it.

He was a cap-blocker, and in the busy season his earnings ranged from ten to fifteen dollars a week.

Blocker's foreman, disdaining an invitation to dismount, saluted his host.

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