abstract wiki:
[ract may mean:Abstract (law), a brief statement of the most important points of a long legal document or of several related legal papersAbstract (summary), an abbreviated summary of any in-depth analysis of a particular subject or disciplineAbstract art, art that does not depict objects in the natural worldAbstract class (see Abstract and Concrete classes), a class in object-oriented programming that is designed only as a parent class and from which child classes may be derived, and which is not itself suitable for instantiationAbstract hip hop, a subgenre of alternative hip hop distinguished principally on the content of the lyricsAbstract music a disambiguation pageAbstract structure, a set of rules, properties and relationships that is defined independently of any physical objects
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sea wiki:
ay stand for:Southeast AsiaThe IATA airport code for Seattle-Tacoma International AirportTwo different aircraft manufacturers named Société d'Etudes Aéronautiques, one French, one BelgianSingle European ActSoluble Egg Antigen (Schistosomiasis)Strategic Environmental AssessmentSouthern Economic Association
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surface wiki:
>For other senses of this word, see surface (disambiguation). In mathematics (topology), a surface is a two-dimensional manifold. Examples arise in three-dimensional space as the boundaries of three-dimensional solid objects. The surface of a fluid object, such as a rain drop or soap bubble, is an idealisation. To speak of the surface of a snowflake, which has a great deal of fine structure, is to go beyond the simple mathematical definition. For the nature of real surfaces see surface tension, surface chemistry, surface energy, roughness.
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