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usually pronounced "are ceez", the term is the plural of the letters of the acronym for research chemicals, q.v.

as a slang term this would refer to the classes of substances not yet scheduled by the DEA as dangerous drugs, usually and particularly but not limited to, the large groups of Tryptamine and Phenethylamine compounds known for their psychoactivity but that have somehow evaded explicit mention in the DEA schedule.

This list would include AMT alpha, 5-meo-DMT deemers, 5-meo-DIPT foxy, and other tryptamine compounds as well as phenthylamine compounds such as 2C-E, 2C-I, 2C-T7 and others.

It is perhaps worth noting that at one time in the past, drugs such as LSD-25, mescaline and MDMA had the status of "research chemical" for varying lengths of time before being used by the population with such frequency as to arouse the attention of the authorities.
q: what drugs have you done?
a: well ive taken lots of drugs. acid, real lsd-25 and just crazy wack blotters and microdots, who knows what was on them. shrooms of course. peyote once. of course i also love a good portion of the rcs: AMT was a personal favorite until it got scheduled.
by vincent black shadow March 06, 2005
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Apr 14 Word of the Day
That moment when you think a bug is crawling on you, and it turns out to be true. LMD

A FML moment. LMD

Pretty much you go, JUST LET ME DIE!

Wish this never happened. LMD
by misspinkyperfectionnnll July 09, 2011
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2
usually pronounced "are ceez", the term is the plural of the letters of the acronym for research chemicals, see also rcs

as a slang term this would refer to the classes of substances not yet scheduled by the DEA as dangerous drugs, usually and particularly but not limited to, the large groups of Tryptamine and Phenethylamine compounds known for their psychoactivity but that have somehow evaded explicit mention in the DEA schedule.

This list would include AMT alpha, 5-meo-DMT deemers, 5-meo-DIPT foxy, and other tryptamine compounds as well as phenthylamine compounds such as 2C-E, 2C-I, 2C-T7 and others.

It is perhaps worth noting that at one time in the past, drugs such as LSD-25, mescaline and MDMA had the status of "research chemical" for varying lengths of time before being used by the population with such frequency as to arouse the attention of the authorities.
q: got any more of those rc's from last month?
a: naah man the government started scheduling whole classes of rcs about three weeks ago after some toad dipped his finger in the bag and died of an OD. now the chemists have started exploring the dreaded benzene ring in search of new variations.
by vincent black shadow March 07, 2005
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3
Raging Cunt Shannon.

A syndrome that causes moodiness/ bitchyness. Possible causes include having the name Shannon and possible lack of sex for a very long time.
UH OH RUN RCS JUST WALKED IN

Everyone left the room because RCS was there

They lost because RCS played
via giphy
by Samre September 12, 2019
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4
Rubick's Cube Syndrome. Characterized by obsessive solving and intrest in Rubick's cubes and other involved puzzles. See also, crazy
The kids at school that have RCS are considered nerds.
by Lydia January 20, 2004
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5
Russian Collaborator Syndrome, defending Trump's action by gaslighting, saying "what about Hillary?", presenting breitbart articles as proof that Trump is not a Manchurian candidate, etc.
Wow, that guy has a serious case of the RCS, he doesn't even believe Flynn pled guilty!
by fromztoa August 18, 2018
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6
acr. (medical): Reverse Camel Syndrome is a disease contracted by the excessive playing of MMORPG's. The afflicted person's bladder will expand, forsaking their need to urinate regularly. This is replaced with longer urinations, but in some severe cases, urinating only once per day.
"I went to the toilet and it was like, severe RCS. I'm talking like, five minutes... Mind you I had been playing everquest all day."
by Methulah May 22, 2005
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