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10. RO
abbreviation for "Reverse Osmosis." Reverse osmosis is a process in which water is forced to travel through a semipermeable membrane against the concentration gradient by increasing the pressure on the feed side above the osmotic pressure of the solute with the highest osmotic pressure. It is often used in drinking water treatment.
People don't know that the reverse osmosis technology used to manufacture their bottled water does not do a good job removing neutral compounds like arsenious acid (arsenic), even though the companies bottline it would like you to think that it is ultra pure.
by Matt Charles Feb 15, 2005 add a video
1. RO
Racial Oppression. Unfair treatment of a specific ethnic group. See the Holocaust.
Airport officer: (Looks at Indo's passport) I'm going to have to ask you to step aside sir.
Indo: FUCK! That's RO, asshole!
2. RO
Ragnarok Online; a MMORPG released by Koran based Gravity corp, quite often played on by private servers like many games that have gone p2p (pay to play). Many players that play iROSE have at one point played RO.
Wow, RO costs $9.50 a month?
by taikamiya Mar 6, 2005 add a video
3. RO
1. Random outburst.

2. Uncontrollable outburst of amusement (usually in text form)

3. Used when LOL or LMAO isnt enough
In text conversation:

Kim: I wore a dress over py pants today
Laura: What?
Kim: Yeah I thought is was a shirt
Laura: RO!
4. Ro
Used to describe a girl most of the time blonde and pretty that is not street smart, and asks stupid questions. Mostly used in pennsylvania
That girl is sucha ro.
5. ro
ro is to "pwn" what "pwn" is to own.
Someone tries to steal your shit and you bitch slap them to the floor...they just got Ro'd.
6. Ro
Ro is to "pwn" what "pwn" is to own.
Someone tries to steal your shit and you bitch slap them to the floor...they just got Ro'd
7. ro
slang for the currency Euro used by English speaking people traveling through Europe. Functions much like the word 'quid'.
Four ro?! For a coke?
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