Freeze-dry (verb)

1. To remove moisture from something by freezing it and then reducing the pressure around it to cause the frozen moisture to sublimate.
2. The process of removing moisture from a substance by freezing it and then reducing the pressure around it, causing the frozen moisture to sublimate.

Origin:

From freeze (verb) meaning to lower the temperature to the freezing point and dry (verb) meaning to remove moisture, it means to remove moisture from something by freezing it and then reducing the pressure around it to cause the frozen moisture to sublimate.

Examples:

1. The food was freeze-dried to preserve it.
2. The samples were freeze-dried before being sent to the lab.
3. The flowers were freeze-dried to be used in potpourri.
4. The astronaut's food was freeze-dried to save space on the mission.
5. The blood plasma was freeze-dried to make it easier to transport.