surface
Abbr. sur.
1.
2. Mathematics. a. The boundary of a three-dimensional figure. b. The two-dimensional locus of points located in three-dimensional space. c. A portion of space having length and breadth but no thickness.
3. The superficial or external aspect: "a flamboyant, powerful confidence man who lives entirely on the surface of experience" (Frank Conroy).
4. An airfoil.
adjective
2.
verb
surfaced
3.
on the surface
To all intents and purposes; to all outward appearances: a soldier who, on the surface, appeared brave and patriotic.
[French : sur-, above (from Old French). See