Cryopreservation - Process of cooling to low sub-zero temperatures.
He was also Head of the Tissue Cryopreservation Section of the Transfusion and Cryopreservation Research Program of the U.S. Naval Medical Research Institute in Bethesda, Maryland where he spearheaded the original concept of ice blocking agents.
Joining Commander Chakotay's (Robert Beltran) team, the crew finds a "cryostasis chamber" containing eight Humans preserved since the 1930s, including Amelia Earhart (Sharon Lawrence) and her navigator, Fred Noonan (David Graf).