from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The outer or the topmost boundary of an object.
- n. A material layer constituting such a boundary.
- n. Mathematics The boundary of a three-dimensional figure.
- n. Mathematics The two-dimensional locus of points located in three-dimensional space.
- n. Mathematics A portion of space having length and breadth but no thickness.
- n. The superficial or external aspect: "a flamboyant, powerful confidence man who lives entirely on the surface of experience” ( Frank Conroy).
- n. An airfoil.
- adj. Relating to, on, or at a surface: surface algae in the water.
- adj. Relating to or occurring on or near the surface of the earth.
- adj. Superficial.
- adj. Apparent as opposed to real.
- transitive v. To provide with a surface or apply a surface to: surface a table with walnut; surface a road with asphalt.
- intransitive v. To rise to the surface.
- intransitive v. To emerge after concealment.
- intransitive v. To work or dig a mine at or near the surface of the ground.
- idiom on the surface To all intents and purposes; to all outward appearances: a soldier who, on the surface, appeared brave and patriotic.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The up-side of a flat object such as a table, or of a liquid.
- n. The outside hull of a tangible object.
- n. (geometry) The locus of an equation (especially one with exactly two degrees of freedom) in a more-than-two-dimensional space.
- v. To provide something with a surface.
- v. To apply a surface to something.
- v. To rise to the surface.
- v. To come out of hiding.
- v. For information or facts to become known.
- v. To work a mine near the surface.
- v. To appear or be found.
from the GNU version of the Collaborative International Dictionary of English
- n. The exterior part of anything that has length and breadth; one of the limits that bound a solid, esp. the upper face; superficies; the outside.
- n. Hence, outward or external appearance.
- n. A magnitude that has length and breadth without thickness; superficies.
- n. That part of the side which is terminated by the flank prolonged, and the angle of the nearest bastion.
- transitive v. To give a surface to; especially, to cause to have a smooth or plain surface; to make smooth or plain.
- transitive v. To work over the surface or soil of, as ground, in hunting for gold.
- intransitive v. To rise from the depths of a liquid to the surface.
- intransitive v. To become known or public; -- said of information.
- intransitive v. To show up, as a person who was in hiding.
from The Century Dictionary and Cyclopedia
- n. The bounding or limiting parts of a body; the parts of a body which are immediately adjacent to another body or to empty space (or the air); superficies; outside: distinguished as a physical surface.
- n. The boundary between two solid spaces not adjacent to a third: distinguished as a mathematical surface.
- n. Outward or external appearance: what appears on a slight view or without examination.
- n. In fortification, that part of the side which is terminated by the flank prolonged and the angle of the nearest bastion.
- n. A centrosurface.
- n. A special case of the above, with four conical points. Generally distinguished as Dupin's cyclide.
- n. where ϕ = 0 is a primitive surface.
- n. An elassoidal surface (which see, above): an ordinary use, but not quite accurate.
- n. A surface generated by the helicoidal motion of a right line.
- n. The surface often originally, and better, called the Roman surface [discovered by Jacob Steiner (1796-1863), undoubtedly the greatest of all geometricians], being a quartic surface of the third class, having three double lines. In its symmetrical form its appearance is thus described: Take a tetrahedron, and inscribe in each face a circle. There will be, of course, two circles touching at the mid-point of each edge of the tetrahedron; each circle will contain, on its circumference, at angular distances of 120°, three mid-points; and the lines joining these with the center of the tetrahedron, produced beyond the center, meet the opposite edges … joining the mid-points. … Now truncate the tetrahedron by planes parallel to the faces, so as to reduce the altitudes, each to three fourths of the original value; and from the center of each new face round off symmetrically up to the adjacent three circles; and within each circle scoop down to the center of the tetrahedron, the bounding surface of the excavation passing through [that is, containing] the three right lines, and the sections by planes parallel to the face being in the neighborhood of the face nearly circular, but, as they approach the center, assuming a trigoidal form, and being close to the center an indefinitely small equilateral triangle. We have thus the surface, consisting of four lobes united only by the lines through the mid-points of opposite edges—these lines being consequently nodal lines, the mid-points being pinch-points of the surface, and the faces singular planes, each touching the surface along the inscribed circle. (Cayley, Proceedings London Math. Soc., V. 14.)
- n. More generally, a surface generated by a curve the plane of which moves in any way so that every line in it remains parallel to itself.
- n. Synonyms Superficies, Exterior, etc. See outside.
- Of or pertaining to the surface; external; hence, superficial; specious; insincere: as, mere surface politeness or loyalty.
- To put a surface (of a particular kind) on, or give a (certain) surface to; specifically, to give a fine or even surface to; make plain or smooth.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the extended two-dimensional outer boundary of a three-dimensional object
- n. a superficial aspect as opposed to the real nature of something
- n. information that has become public
- n. the outermost level of the land or sea
- v. put a coat on; cover the surface of; furnish with a surface
- v. come to the surface
- n. a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight
- adj. on the surface
- v. appear or become visible; make a showing
- n. the outer boundary of an artifact or a material layer constituting or resembling such a boundary
French : sur-, above (from Old French; see sur-) + face, face (from Old French; see face).(American Heritage® Dictionary of the English Language, Fourth Edition)