open surfaces
Uncovered outer planes
Open surfaces are areas exposed to air, weather, or contact rather than enclosed or protected.
The term appears in contexts ranging from cooking to construction: Bacteria grow quickly on open surfaces left at room temperature.
In geometry, an open surface is one without boundary edges that enclose a volume—a plane extending infinitely, as opposed to the closed surface of a sphere.
- plainsBroad, level grasslands
- exposedOut in open
- flatLacking vertical variation
- terrainLand's physical features
- rolling hillsGently rising, falling landscape
uncovered · expansive · meadow · plateau · prairie · bare · smooth · tabletop · skin · skin deep · membrane · facade · exterior · unobstructed · sprawling · canvas · blank · blank slate
open surfacesenclosed spaces
Areas with boundaries
compartments · confined spaces · rooms · tunnels · caves
open, surface, opens, opened, opening, opener, openness, openly, reopen