crack

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crack:

see cocainecocaine
, alkaloid drug derived from the leaves of the coca shrub. A commonly abused illegal drug, cocaine has limited medical uses, most often in surgical applications that take advantage of the fact that, in addition to its anesthetic effect, it constricts small arteries,
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.

What does it mean when you dream about cracks?

Can represent a flaw or weakness. A crack in a dream could be drawing on the meaning of an idiom, such as “papering over the cracks,” “cracking up,” or “falling through the cracks.”

crack

[krak]
(chemistry)
To break a compound into simpler molecules.
(engineering)
To open something slightly, for instance, a valve.
(science and technology)
A fissure.

crack

A building defect consisting of complete or incomplete separation within a single element or between contiguous elements of constructions.

crack

1. a break or fracture without complete separation of the two parts
2. a physical or mental defect; flaw
3. a broken or cracked tone of voice, as a boy's during puberty
4. Slang a processed form of cocaine hydrochloride used as a stimulant. It is highly addictive
5. Obsolete slang a burglar or burglary

crack

To break into. See cracker.
References in periodicals archive ?
A 3/2/1 crack spread is calculated assuming that three barrels of a benchmark crude oil are converted, or cracked, into two barrels of gasoline and one barrel of diesel.
Seasonal factors seem to be the reason why the crack spread is not widening.
A Gulf Coast 3/2/1 crack spread is calculated assuming that three barrels of WTI Cushing crude oil are converted, or cracked, into two barrels of Gulf Coast conventional gasoline and one barrel of Gulf Coast ultra-low sulfur diesel.
Jet fuel reflected 29% of Delta's 2011 operating expenses, and the carrier estimates that the crack spread alone represented 10% of unit costs last year versus 3% two years ago, highlighting the urgency of alternative approaches to jet fuel cost management.
We compare our refinery operating margin to these crack spreads to assess our operating performance relative to other participants in our industry.
This decrease in operating margin was primarily due to a lower Gulf Coast 2/1/1 high sulfur diesel crack spread and a narrowing WTI Cushing to WTI Midland spread, partially offset by a widening LLS to WTI Cushing spread and the second quarter 2015 Contango Benefit.
The following are extracts from his presentation: "In other words, if the crack spread is rising, its products, especially gasoline, are leading crude oil up, not the other way around.
Improvements in the 2010 crack spread were offset by reduced production output, as HOVENSA executed capital improvements resulting in planned and unplanned outages.
The Partnership enters into commodity swap contracts through crack spread swap agreements with financial counterparties to fix the spread risk between the crude oil the Partnership purchases and the refined products the refineries produce for sale.
A crack spread is the difference between the cost of oil and the price refiners charge for motor fuel.
The Krotz Springs refinery also performed very well in the first quarter 2015 with an improvement in the Gulf Coast 2/1/1 crack spread complemented by robust operations.
The external conditions were characterized by 20 percent lower average crack spread and more than 10 percent higher crude oil price in Q2 2011 compare to previous quarter which kept refining margin under pressure," MOL said.