Look up: envelope

1. 
   Envelope
   Envelopes for letters were first mentioned by Jonathan Swift in 1726, and came into general use with the introduction of the penny post in 1840.
   Found on http://www.encyclo.co.uk/nol.php
   
   
2. 
   Envelope
   1) Jargon for Lamp. 2) The glass tube part of the lamp, containing the filament.
   Found on http://www.dramatic.com.au/glossary/glos
   
   
3. 
   Envelope
   The outermost layers of a cell or the membrane of a virus.
   Found on http://www.pestmanagement.co.uk/lib/glos
   
   
4. 
   Envelope
   The envelope is the part of the balloon that inflates. It is made up of a number of vertical segments called gores, which are themselves made up of a number of smaller panels. Each panel edge is folded back on itself, interleaved with the next folded edge, and then all four thicknesses of fabric are sewn through twice by machine using a lockstitch known as a French Fell Seam. The gores are attached to heavy duty webbing tapes that pass around the balloon. The envelope has large holes top and bottom. The bottom one is fairly obvious in its function - the pilot has to be able to fill the balloon with hot air. The top one is a valve to enable the pilot to vent air quickly when the pilot wants to descend or land. Envelopes are named by their capacity. For example a '77' holds 77,000 cubic feet of air. This is about the size of balloon that will carry three people.
   Found on http://www.bized.co.uk/virtual/cb/glossa
   
   
5. 
   envelope
   [n] - a curve that is tangent to each of a family of curves 2. [n] - a natural covering (as by a fluid) 3. [n] - the maximum operating capability of a system 4. [n] - the bag containing the gas in a balloon 5. [n] - a flat rectangular paper container for papers 6. [n] - any wrapper or covering
   Found on http://www.webdictionary.co.uk/definitio
   
   
6. 
   Envelope
   1) How a sound or audio signal varies in intensity over a time span.
   2) How a control voltage varies in level over time controlling a parameter of something other than gain or audio level.
   Found on http://www.testing1212.co.uk/a.htm
   
   
7. 
   Envelope
   In audio recording software this refers to the way in which the level of a sound or signal varies over time, including alterations in a sound's amplitude, frequency and timbre. In MIDI, an instrument can be altered by manipulating the envelope which contains parameters such as attack, sustain, decay and release. (See ASDR). Using patch editing software the user is able to edit the envelope of a synthesized sound thereby allowing its customization
   Found on http://www.musiconmypc.co.uk/art_glossar
   
   
8. 
   Envelope
   changes in a sound over time, including alterations in a sound's amplitude, frequency and timbre. Used in sound synthesis to control the volume, pan, pitch or other attribute of sound over a period of time. ADSR envelopes are the most commonly used type of envelope. They are divided into several segments, Attack, Decay, Sustain and Release. The att...
   Found on http://www.traditionalmusic.co.uk/music%
   
   
9. 
   Envelope
   The gas container of a balloon or airship or the outer cover surrounding the gas bags.
   Found on http://www.aeroplanemonthly.com/glossary
   
   
10. 
    Envelope
    Paper that is folded and glued in a wide variety of sizes and shapes, for containing letter of other materials. Many printing jobs will end up in an envelope. The closer a finished piece is to an envelope size, the easier it will be to mail and the less chance it will be damaged by jostling around inside the envelope. An envelope maker can make jus...
    Found on http://www.britishprint.com/tw/glossary.
    
    
11. 
    envelope
    a) the gas-containing unit of a balloon, non-rigid, or semi-rigid airship; b) the outer cover of an airship in which the gas-containing units are surrounded by a layer of air or inert gas Category: Transport • outer diaphragm used in precure retread systems to prevent air in chamber from penetrating between tread and casing, and to give satisfactory finish to exposed bonding layer C...
    Found on http://www.mijnwoordenboek.nl/definition
    
    
12. 
    Envelope
    Definition (advanced level) A curve or a surface which touches every member of a family of lines, curves, planes or surfaces.<br /> A family of curves in two dimensions f ( x , y , t ) = 0 (where t is a parameter) has an envelope whose equation can be found by solving simultaneously:<br /><br /> f ( x , y , p ) = 0 ∂ Ƞ ...
    Found on http://thesaurus.maths.org/mmkb/entry.ht
    
    
13. 
    envelope
    (1) Lipoprotein outer layer of some viruses - derived from plasma membrane of the host cell. (2) In bacteriology, the plasma membrane and cell wall complex of a bacterium.
    Found on
    
    
14. 
    envelope
    1. <virology> Lipoprotein outer layer of some viruses derived from plasma membrane of the host cell. ... 2. <microbiology> The plasma membrane and cell wall complex of a bacterium. ... (11 Nov 1997) ...
    Found on http://www.mondofacto.com/facts/dictiona
    
    
15. 
    envelope
    noun any wrapper or covering
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
16. 
    envelope
    noun the maximum operating capability of a system; `test pilots try to push the envelope`
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
17. 
    envelope
    noun a natural covering (as by a fluid); `the spacecraft detected an envelope of gas around the comet`
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
18. 
    envelope
    noun a curve that is tangent to each of a family of curves
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
19. 
    envelope
    noun the bag containing the gas in a balloon
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
20. 
    Envelope
    An `envelope` is a packaging product, usually made of flat, planar material such as paper or cardboard, and designed to contain a flat object, which in a postal-service context is usually a letter or card. The traditional type is made from a sheet of paper cut to one of three shapes: the rhombus (also referred to as a lozenge or diamond), the short-arm cross, and the kite. These designs ensure that in the course of envelope manufacture when the s...
    Found on http://en.wikipedia.org/wiki/Envelope
    
    
21. 
    envelope
    (en´vә-lōp) an encompassing structure or membrane. in virology, the outer lipoprotein coat of a large virus, surrounding the capsid and usually furnished, at least partially, by the host cell. Called also peplos. in bacteriology, the cell wall and the plasma membrane considered together....
    Found on http://www.mercksource.com/pp/us/cns/cns
    
    
22. 
    Envelope
    • (n.) Alt. of Envelop
    Found on http://thinkexist.com/dictionary/meaning
    
    
23. 
    envelope
    (from the article `virus`) ...into a structure called a nucleoprotein, or nucleocapsid. Some viruses have more than one layer of protein surrounding the nucleic acid; still ...
    Found on http://www.britannica.com/eb/a-z/e/34
    
    
24. 
    envelope
    (from the article `motion-picture technology`) The modern era in lighting began in the late 1960s when tungsten-halogen lamps with quartz envelopes came into wide use. The halogen compound is ... Electric discharge lamps, in which enclosed gases are energized by an applied voltage and thereby made to glow, are extremely efficient light ...
    Found on http://www.britannica.com/eb/a-z/e/34
    
    
25. 
    envelope
    (from the article `singular solution`) ...of the differential equation, but it is not a member of the family constituting the general solution. The singular solution is related to the ...
    Found on http://www.britannica.com/eb/a-z/e/34