blocker

[ blok-er ]

noun

1. a person or thing that blocks.
2. Football. a player whose assignment or special skill is blocking. block.
3. 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 /

noun

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

Word History and Origins

Origin of blocker¹

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

Example Sentences

This treatment through social transitioning, puberty blockers, or hormone therapy can be lifesaving for children, and more than 30 medical associations have issued policy statements that support its use.

From Salon

The Bruins’ rushing attack is last in the country but their running backs have found other ways to influence the game, primarily as receivers and blockers.

From Los Angeles Times

The Bruins’ rushing attack is last in the country but their running backs have found other ways to influence the game, primarily as receivers and blockers.

From Los Angeles Times

The regulator also asked Mermaids to amend the information it had on its website about puberty blockers to also reflect the findings of the Cass Review, which it has.

From BBC

The Cass Review, which looked at gender identity services for under-18s, said there were "gaps in evidence" around puberty blocker drugs.

From BBC