surface
/ˈsɝ.fɪs/ noun B1- The external boundary of an object or body.
- The overside or upside of a flat object such as a table, or of a liquid.
- The outside hull of a tangible object.
- Outward or external appearance. · On the surface, the spy looked like a typical businessman.
- The locus of an equation (especially one with exactly two degrees of freedom) in a space of more than two dimensions.
- The story or image suggested by a cryptic clue, when read as a whole sentence without considering wordplay.
- A portion of the display to which graphics can be rendered. · The video player algorithm requires a target surface.
Plural surfaces
From the library
It is a rock of almost conical form, which looks as though it had been thrust up by volcanic force from the depth to the surface of the ocean.
With a mighty leap he rose to the surface of the sea, while the shot dragged down to the depths the sack that had so nearly become his shroud.
"Up some years, Watson," he remarked, indicating its discoloured surface.
"Well, well!" said he, coolly, as he scrambled to the surface.
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