What is "lyophilized"

lyophilized \lyophilized\ adj. dried by freezing and subsequent evaporation of the water in a high vacuum; -- used of tissue or blood or serum or other biological or sensitive substances.

Syn: lyophilised, freeze-dried.

1. freeze-dried v

2. (en-past of: lyophilize)

adj. used of tissue or blood or serum or other biological substances; dried by freezing in a high vacuum [syn: lyophilised, freeze-dried]