bottleneck

American  

[bot-l-nek] / ˈbɒt lˌnɛk /

noun

1. a narrow entrance or passageway.

2. a place or stage in a process at which progress is impeded.

3. Also called slide guitar.  a method of guitar playing that produces a gliding sound by pressing a metal bar or glass tube against the strings.

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verb (used with object)

1. to hamper or confine by or as if by a bottleneck.

verb (used without object)

1. to become hindered by or as if by a bottleneck.

bottleneck British  

/ ˈbɒtəlˌnɛk /

noun

1. 1. a narrow stretch of road or a junction at which traffic is or may be held up

   2. the hold up

2. something that holds up progress, esp of a manufacturing process

3. music

   1. the broken-off neck of a bottle placed over a finger and used to produce a buzzing effect in a style of guitar-playing originally part of the American blues tradition

   2. the style of guitar playing using a bottleneck

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verb

1. (tr) to be or cause an obstruction in

bottleneck Scientific  

/ bŏt′l-nĕk′ /

1. An abrupt and severe reduction in the number of individuals during the history of a species, resulting in the loss of diversity from the gene pool. The generations following the bottleneck are more genetically homogenous than would otherwise be expected. Bottlenecks often occur in consequence of a catastrophic event.

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bottleneck Cultural  

1. The point at which an industry or economic system has to slow its growth because one or more of its components cannot keep up with demand.

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Etymology

Origin of bottleneck

First recorded in 1895–1900; bottle ¹ + neck

Explanation

A bottleneck is a type of traffic jam, when cars get stuck or slowed down in a narrow part of the roadway. You might leave work two hours later than usual to avoid a bottleneck. Anything that gets stalled in a narrow area, whether it's auto traffic or pedestrians, can be called a bottleneck. Information can also get stuck in a kind of bottleneck, if the system itself creates a delay. The term comes from the shape of an actual bottleneck, or the narrow neck or mouth of a bottle.

Example Sentences

It was Zilis’s belief then that more than chips, software or employees, the main bottleneck for building powerful models would be the actual amount of power required.

From The Wall Street Journal • May 6, 2026

"But, after carefully adjusting the network, we eventually realized the bottleneck was recursive automatic differentiation itself."

From Science Daily • May 6, 2026

Read: Optics is the next big AI bottleneck.

From MarketWatch • May 5, 2026

The AI boom was just getting past its last bottleneck.

From Barron's • May 4, 2026

The entryway of Mitch’s house is a bottleneck.

From "Dumplin'" by Julie Murphy

Related Words

• barrier
• blockage
• congestion
• hindrance
• impediment
• snag
• traffic jam