esteno- 15
It is a Greek prefix meaning narrow, snug, compressed, tightened and adjusted. In biology, it is used to designate elements, bodies or beings that do not support changes minimal in their living conditions. It is the opposite of the Euri prefix, which means wide range of resistance. The prefix stheno helps us to form the estenotermo Word, that makes refererncia to animals that do not support minimum temperature changes.