slack

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Related to slacken: slacken off

slack

1
1. 
a. a patch of water without current
b. a slackening of a current
2. Prosody (in sprung rhythm) the unstressed syllable or syllables

slack

2
small pieces of coal with a high ash content
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

slack

[slak]
(engineering)
Looseness or play in a mechanism, as the play in the trigger of a small-arms weapon.
(geology)
A hollow or depression between lines of shore dunes or in a sandbank or mudbank on a shore.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

slack

1. Coal of relatively fine size, usually not exceeding 2½ in. (6.35 cm) in diameter; often screenings.
2. Fitting loosely.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

slack

(operating system)
Internal fragmentation. Space allocated to a disk file but not actually used to store useful information.

slack

(jargon)
In the theology of the Church of the SubGenius, a mystical substance or quality that is the prerequisite of all human happiness.

Since Unix files are stored compactly, except for the unavoidable wastage in the last block or fragment, it might be said that "Unix has no slack".

See ha ha only serious.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

Slack

(1) See SLAAC.

(2) A popular workplace collaboration application from Slack Technologies (www.slack.com). Introduced in 2013 and originally developed as a tool for its own video game development, Slack lets people organize chat "channels" for projects, departments, groups of users, etc., all of which reside in a sidebar. Messages can also be made private, and files can be shared by dropping them into a channel.

Documents can be searched, and social media, cloud storage and other services can be plugged in to keep all communications in one place. Available as a freemium product, the paid versions offer many more features, including tech support, usage statistics and unlimited searching and service integration. See collaboration software.
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References in periodicals archive ?
Advances for vinyl siding will slacken from the pace of the 1989-1998 period, but it will remain the market leader, with a share exceeding 43 percent by 2003.
This campaign seems intended to influence the substance of FASB pronouncements, as well as to actually change the FASB's voting requirements and slacken the pace of its work."
In a letter to Richard Breeden, chairman of the Securities and Exchange Commission, Dingell expressed concern with a campaign that "seems intended to influence the substance of FASB pronouncements, as well as to actually change the FASB's voting requirements and slacken the pace of its work." The letter requests that Breeden provide the subcommittee with the SEC's views on whether a change in the FASB's present voting and operating process is needed and asks the SEC to assess the FASB's recent performance and describe the SEC's efforts to protect the FASB's independence.
Private consumption growth will slacken along with the slackening growth of agricultural produce and lending to
Global Banking News-August 6, 2013--Commercial banks in Poland slacken requirements for corporate loans(C)2013 ENPublishing - http://www.enpublishing.co.uk
There was an appetite for information and news free from state control as the authoritarian regime began to slacken their grip on the media.
HMS Liverpool was in the wet dock and the foreman of the sailor gang asked me to go over to the ship a couple of times a week and slacken the mooring ropes because of the high tides and check everything was shipshape.
The manufacturing industry will slacken in the fourth quarter, compared with the third quarter.
That is not before time, but the CQC's leaders must not allow their efforts to slacken if the public turns its eye to other matters.
The oil market took a hammering from a decline on Wall Street, which spawned speculation that energy demand will slacken as economic recovery slows, market analysts said.
Perhaps to make sure his foothold down south does not slacken, Madhavan has scripted the story of a Tamil film, in which he will be acting as well.
Hudson urges Bluebirds not to slacken off CARDIFF CITY skipper Mark Hudson has promised there will be no let-up to the Bluebirds' blistering start to the season when Bristol Rovers arrive for a Carling Cup second round clash tomorrow night.