ok ,I am not to good with words. If I had a capsule half filled with water, then vacuum the air from the top of the capsule to the structures maximum pressure threshold(any more would collapse the structure).could water be taken from the capsule without affecting the structure. An example would be when you drink from a plastic bottle sealing your lips over the opening. As you draw flexing your mouth to get it full it collapses the structure of the bottle because of the elasticity of thin plastic. Could you extract water from the capsule? The point I’m making is you can siphon water from a vacuum and the definition in the dictionary does not conflict with this process. You can convey through immersion and if you look up immersion it doesn’t denote to needing air pressure at all. For argument sake, the cup of water could be submerged before the vacuum is present. Then simply put the cup in a reverse airlock through the means of robotics if you wish and seal the R airlock and quench your thirst. All of these actions do not conflict with what the oxford English dictionary defines as a siphon. I have just siphoned a cylinder of water from the vacuum through immersion and conveying. the structure could collaps after the cup had been removed but I still siphoned a glass of water from a water exempted vacuumed capsule. Using the 99 year old definition.