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Medical Term:


Pronunciation: kon′ser-vā′shŭn


  1. Preservation from loss, injury, or decay.
  2. In sensorimotor theory, the mental operation by which a person retains the idea of an object after its removal in time or space.
  3. Presence of a gene in two different organisms.
  4. The retention of structure with a variation in the environment, genetics, or other conditions.

[L. conservatio, a preserving, keeping]