blocker
Definition
Noun: 1. A substance or agent that prevents a specific biological or chemical action: A "blocker" is something that stops or inhibits a process, often by physically obstructing it or interfering with a receptor. This is most commonly used in medical and biochemical contexts. 2. A player in American football whose primary task is to obstruct opponents: In sports, specifically American football, a "blocker" is an offensive player whose job is to physically prevent defensive players from tackling the ball carrier or the quarterback.
Usage Examples
Noun (Medical/General):
- Beta-blockers are commonly prescribed to manage high blood pressure and anxiety.
- Sunscreen acts as a UV blocker to protect the skin from sun damage.
- The researcher used a channel blocker to study the function of the nerve cell.
Noun (Sports):
- The running back followed his lead blocker through the hole in the defensive line.
- As a tight end, his role is to be both a receiver and a blocker.
- The team's best blocker was assigned to protect the quarterback's blind side.
Advanced Usage
- "Adrenergic blocker": A type of drug that blocks the effects of adrenaline (epinephrine).
- "Shot blocker": In basketball, a player who is skilled at blocking opponents' shot attempts. (Note: This is a related but distinct compound term from the core definition).
Variants and Related Words
- Block (verb/noun): The root action from which "blocker" is derived. To obstruct or prevent movement or progress.
- Blockade (noun/verb): An act of sealing off a place to prevent goods or people from entering or leaving.
- Blockage (noun): An obstruction that prevents flow or passage.
Synonyms
- Inhibitor: (Medical/Chemical) A substance that slows down or prevents a particular chemical reaction or process.
- Obstructor: One who or that which obstructs.
- Barrier: A fence or other obstacle that prevents movement or access.
Related Phrases
- Blocker to the play: A sports term describing a blocker who is actively engaged in obstructing a defender on a specific play.
- Blocker/releaser: In some contexts, a term for a substance or mechanism that can both inhibit and then permit a process.
Related Idioms
- To put up a blocker: (Informal, derived from sports) To create an obstacle or defense against something.
- She put up an emotional blocker to avoid dealing with the bad news.
Noun
-
a class of drugs that inhibit (block) some biological process
-
a football player whose responsibility is to block players attempting to stop an offensive play
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