registered cunt hair
a very small amount of space--larger than a micron--used on film sets
"Move frame left an R.C.H."
"If she just moves an R.C.H. to the right, the shot will be perfect."

by dtwilliams7 July 12, 2008
Top Definition
The smallest unit of measurement practically possible: A Red Cunt Hair.
by Anonymous December 15, 2002
A red cunt hair. Referring to the smallest unit of space, length, width, or height allowable.
I missed that bullseye by an R.C.H..
by Dave December 20, 2002
30 microns. Measured on a comparator by a physical scientist on his secretary's red cunt hair at the Defense Mapping Agency's Erskine Hall, Bethesda, MD sometime around 1980. No Shit. Your tax dollars at work.
"That RCH was yummy!" said Roy as he pulled it from his teeth.
by Joe Schmuckatella July 18, 2007
a very FINE measurement.
Go gets my hammer sos wes can move dis an rch.
by mushim October 24, 2003
A standard of measurement, the basis of the nano rch and the pico rch.
OK, Lem, we gotta move this mill just an RCH, so go easy with the hammer.
by Sneaky Snyde April 30, 2005
Raleigh Charter High School, a very prestigious charter school in downtown Raleigh. It is a hospitable environment to the growth and maturing of a variety of individuals. The blend of social and academic perfection led it to become top 9 on Newsweek magazine's school ratings in 2007. However, there has been a lot of recent trouble with drinking, drugs and other nonsense.
Hey, I go to RCHS.
Wow, I applied there. But I didn't get in. My life would have been so much better if I did.

Hey, I go to RCHS!
Oh, I know that school. It is really good at the academic competitions, like quiz bowl and world quest.
Yup, that is the one. We pwn.
by AnAlumni January 10, 2009
Raleigh Charter High, one of the hardest high schools in the country (#20 on US News). Admission by lottery, no tuition. Really, we're just 520 "wannabe-successful" middle class preps playing catchup with those rich Ravenscroft kids.

If you think we have no life, then that's partially true: Status revolves around the course-load; average is around 3 APs a year (destroyed the exams, as well: 85% 4s and 5s, 90% pass rate!). Quiz Bowl (1st in the Nation!), Science Olympiad (1st in the State, tied with those science nerds in Durham), Mock Trial, and Crew dominate the competitive scene.

Notable for not having a football team or homecomings (until this year).
"Thank god I didn't get into RCHS: They don't even have football. Or homecomings! And APs will be my only friend."

"Yeah, I know... Those junkies take like 5 APs and cut themselves." (Hehehe, freaked out one guy)
by DJ Wondaz May 05, 2009

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