Sŷnʹte-rēʹsis, n.

n. [Gr. συντήρησις, a watching closely, from συντηρεῖν, to watch closely together, from σύν, with, and τηρεῖν, to watch, guard.]

1. (Med.) Preservative or preventive treatment.
2. (Metaph.) Conscience viewed as the internal repository of the laws of right. Whewell.