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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

/ ˈɒə /

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

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of blocker1

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

Examples have not been reviewed.

The hospital’s Transyouth center is among the oldest and largest programs in the country, and among the only facilities that provides puberty blockers, hormones and surgical procedures for trans youth on public insurance.

From

Deputy Prime Minister Angela Rayner said the government was continuing to back "the builders not the blockers", adding it was "time for developers to roll up their sleeves and play their part".

From

The case calling for a full judicial review was brought after the NHS announced in December last year that under-18s would no longer be prescribed puberty blockers at gender identity clinics.

From

Rachel Reeves said the airport expansion was vital for kickstarting economic growth and promised to "stop blockers getting in the way of development".

From

Lercanidipine is a calcium channel blocker, which works by making it easier for the heart to pump blood around the body.

From

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