The word colorless means without color or lack of color.
Yes. Achromatic does mean colorless in Greek.
Near colorless
Do you mean choline? Choline is a colorless vicious Alkaline Present in animal tissues
If you mean halite salts containing e.g. chlorite ClO2- ions these are colorless.
colorless gas
Nitrogen is a colorless gas at room temperature and pressure. It appears colorless in its pure form.
Water is usually a colorless liquid.
No, just because you can see through the water does not mean there's nothing there.
If you mean halite salts containing e.g. chlorite ClO2- ions these are colorless.
Diamond and quartz are colorless minerals that also have a colorless streak. This means that when these minerals are scratched against a white ceramic plate, they leave behind a streak that is also colorless.
It is a colorless liquid.
In Magic: The Gathering, a colorless commander deck must have a colorless commander, and all cards in the deck must be colorless or have a colorless color identity. The deck can include artifacts, lands, and colorless creatures, but no cards with colored mana symbols.