Definitions
Century Dictionary and Cyclopedia
- n. One who blocks: used specifically in hat-making, shoemaking, book-binding, etc.
- n. A blocking-tool or -machine.
Wiktionary
- n. Agent noun of block; something that blocks something specific.
WordNet 3.0
- n. a football player whose responsibility is to block players attempting to stop an offensive play
- n. a class of drugs that inhibit (block) some biological process
Examples
“Scent blocker is not needed when squirrel hunting; what you do need is a way to slip through the woods as quietly as possible, the best advice I can give you is walk slowly and watch your step.”
“Also, the pop-up blocker is not effective. camron9989”
Google Chrome 2 Brings New Features And Serious Speed | Lifehacker Australia
“Investments held offshore in what is known as a "blocker corporation" can allow U.S. taxpayers to pay less tax than if the same investment were made through an onshore entity, Mr. Gordon says.”
The Wall Street Journal: What You Can Learn From Mitt's Tax Return
“Pain blocker injections should last another hour or two.”
“Desmond Clark, a better blocker, is likely to retain the starting role.”
“He is more of a finesse, position-and-sustain blocker but has the quickness and movement skills to fire off the snap on pulls and traps.”
“•Lorenzo Neal, Chargers — Tomlinson's lead blocker is the best blocking fullback in the game and has now bulldozed paths for a 1,000-yard rusher in 10 consecutive seasons.”
“Huselius 'second of the night and 27th of the season came at 9: 08 of the third period, on a wrist shot over Budaj's blocker from a near impossible angle after being set up by Iginla.”
“But Sturm rifled a shot over Tellqvist's blocker from the left circle with 10: 45 remaining to restore the Bruins 'two-goal lead.”
“Best as a position-and-sustain blocker, as he displays good balance and knee bend. ...”
Lists
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Tweets
Looking for tweets for blocker.

john “Each team fields five players at a time. Out of those five players, four are blockers and one is the jammer (point scorer). The four blockers from each team line up together and form a pack, while the two jammers line up 30 feet behind.�?
—Gotham Girls Roller Derby Aug 23, 2009