pantropy
Noun
Meaning
pantropy (uncountable)
(science fiction) The process of adapting humans through genetic and/or cybernetic means to thrive in environments otherwise inhospitable to them, such as outer space, the deep sea or other planets.
Examples
A very long time after the beginning of the Pantropy program, a starship crewed by "standard" humans is en route to some unimportant backwater planet to deliver a pantropy team who are "adapted" humans resembling seals more than humans.
However, the government really only tries to derail pantropy because it will cut their profits from terraforming attempts.
The stories are also notable for including a form of pantropy that has been used to modify humans into a sea-dwelling form known as "Tritons".