air envelope
1air — n 1 Air, atmosphere, ether, ozone. Air designates the invisible mixture of gases which surrounds the earth and is the impalpable respirable substance essential to life {the air we breathe} or that substance mixed with or contaminated by other… …
2Air France Flight 447 — F GZCP, the aircraft involved in the accident Accident summary Date 1 June 2009 …
3Air barrier — Air barriers control air leakage into and out of the building envelope. This allows for more durable buildings as moisture is kept out and also results in significant energy savings. Air barrier products may take several forms: *Mechanically… …
4air letter — air ,letter noun count a letter written on one piece of light paper that is folded over to form a type of envelope and is sent by AIRMAIL …
5air letter — air′ let ter n. 1) phi an airmail letter 2) phi Also, aerogram 3) a sheet of lightweight paper that is folded to form its own envelope. • Etymology: 1915–20 …
6Air-supported structure — An air supported structure is any structure that derives its structural integrity from the use of internal pressurized air to inflate a pliable material (i.e. structural fabric) envelope, so that air is the main support of the structure. It is… …
7Envelope (disambiguation) — An envelope is the paper container used to hold a letter being sent by post.Envelope may also refer to:In science: * Envelope (mathematics), a curve, surface, or higher dimensional object defined as being tangent to a given family of lines or… …
8Envelope — This article is about envelopes in packaging. For other uses, see Envelope (disambiguation). Front of an envelope mailed in the U.S. in 1906, with a postage stamp and address …
9envelope — noun Date: circa 1714 1. a flat usually paper container (as for a letter) 2. something that envelops ; wrapper < the envelope of air around the earth > 3. a. the outer covering of an aerostat b. the bag containing the gas in a balloon or airship… …
10Air-to-air missile — An air to air missile (AAM) is a guided missile fired from an aircraft for the purpose of destroying another aircraft. It is typically powered by one or more rocket motors, usually solid fuelled but sometimes liquid fuelled. Ramjet engines, as… …
