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1.) the smallest measurable unit that can be visibly seen
2.) the smallest measurable unit (about 0.001 femtometers)
3.) (Nautical, Nuclear) a quickly estimated unit of length equal to one hundred quadrillionth of a meter, often abbreviated as RHC when females or effeminate males are present.
Dammit! If I could only get that screw in another red cunt hair, this lid could seal!
by NeightR April 15, 2006
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A humorous, historic unit of measure most often used to indicate a small variance in size, position, or spatial reference.
The width of a cunt hair as actually measured using a calibrated micrometer, typically ranges from .003" to .005" wide using the Imperial Standard, or .0762mm to .127mm Metric Standard.
The term is widely used and considered humorous among tradesmen, people in the military, or anyone wishing to express a small unit of measure or deviation from an established standard. The term cunt hair is also considered vulgar in many social situations where a familiarity or use of this expression is not common.
The term began as a humorous description at a time when measuring devices were crude and imprecise.

Until recently, the demarcation "cunt hair" had never been standardized. The new emerging standard measurement for a cunt hair is 1/64" Imperial.

This increment has been chosen to represent the term cunt hair because most often tradesmen will identify a "cunt hair" measurement as half the space between the 1/32" marks on their tape measure. It is also the smallest identifiable demarcation visible on a ruler or tape measure without the use magnifying aids. The case for this increment is further made by the abstract nature of pubic hair and it's inconsistencies of thickness. The humorous nature of this term, casual use and spontaneous reference negate the need for a scientific standard as it is never used for an actual documented measurement.
A sheet metal worker might say, "Move it a cunt hair to the left."
A carpenter would say, "Trim a cunt hair off that board and it will fit perfectly."
A sniper may indicate that "The shot missed by a cunt hair."
by Max Chatfield August 15, 2020
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blond cunt hair

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1) A unit of measurement, often used by tradesmen to describe small adjustments required.

2) commonly accepted to be less precise than a "red cunt hair", the finest hair measurement scale currently in use.
"Hey Scotty, shave a blond cunt hair off that pipe, she's not lining up bud"
by Scotty Chats May 6, 2018
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A term usually used in Military applications, and often abbreviated to just CH (or Charlie-Hotel in phonetics.) Is is often looked upon as the second smallest possible unit of measurement outside of Scientific applications, the smallest being a Red Cunt Hair (RCH/Romeo-Charlie-Hotel.)

It holds no exact translation into either the US Standard or the Metric Systems, and is an extremely variable term. The closest possible definition is: an approximation of an extremely small increment.
"Sergeant! Please move that Bradley over, just a CH though."

"Holy Shit! I just caught one in the plate! Had that been a Cunt Hair over to the left, I'd be a dead man, Sir!"
by Herr Jaeger November 20, 2011
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scandinavian cunt hair

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1st smallest unit of measure, 1/2 the thickness of an ordinary cunt hair. Also very fine.
I missed hitting that
car by a scandinavian cunt hair.

That bitch is finer than a scandinavian cunt hair.
by willifish August 7, 2009
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Cunt hair is simply hair that grows out of a woman's cunt.
It can also mean a little bit. Like; Move it over a cunt hair.
That girl had some long cunt hair.

DUDE I'm trying to fucking study, turn that asshole CD player down just a cunt hair.
by BRiTTANY BREAKDOWN July 26, 2006
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