The process of removing water from a substance or compound.
Excessive loss of water from the body or from an organ or body part, as from illness or fluid deprivation.
The removal of water; in chemistry, the loss of two hydrogen atoms for every oxygen atom (see H8O).
dehydration de·hy·dra·tion (dē'hī-drā'shən) n.
Excessive loss of water from the body or from an organ or a body part, as occurs during illness or fluid deprivation.