envelope

envelope
envelope [än′və lōp΄, en′′və lōp΄]
n.
[Fr & OFr enveloppe < OFr envoluper: see ENVELOP]
1. a thing that envelops; wrapper; covering
2. a folded paper container as for a letter, usually with a gummed flap for sealing
3.
a) the outer covering of a rigid airship
b) the bag that contains the gas in a balloon or nonrigid airship
4. the set of limitations, as for a particular aircraft, system, etc., within the boundaries of which it can operate safely and efficiently
5. a set of limits or boundaries: usually in the informal phrase push the envelope, to go beyond or attempt to go beyond established rules, limits, expectations, etc.
6. Astron. a cloudy mass surrounding the nucleus of a comet; coma
7. Biol. any enclosing membrane, skin, shell, etc.
8. Math. a curve that is tangent to every one of a family of curves, or a surface that is tangent to every one of a family of surfaces

English World dictionary. . 2014.

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Synonyms:
, , , / (to cover a weak part) /


Look at other dictionaries:

  • envelope — en‧ve‧lope [ˈenvələʊp ǁ loʊp] noun [countable] a thin paper cover in which you put a letter ˌpadded ˈenvelope an envelope filled with soft material that is used for sending things which can easily be damaged ˌself adˌdressed ˈenvelope written… …   Financial and business terms

  • Envelope — En vel*ope (?; 277), Envelop En*vel op (?; 277), n. [F. enveloppe.] 1. That which envelops, wraps up, encases, or surrounds; a wrapper; an inclosing cover; esp., the cover or wrapper of a document, as of a letter. [1913 Webster] 2. (Astron.) The… …   The Collaborative International Dictionary of English

  • envelope — ► NOUN 1) a flat paper container with a sealable flap, used to enclose a letter or document. 2) a covering or containing structure or layer. 3) the outer housing of a vacuum tube, electric light, etc. 4) the structure within a balloon or non… …   English terms dictionary

  • Envelope —   [engl.], Hüllkurve …   Universal-Lexikon

  • envelope — 1705, from Fr. enveloppe (13c.), a back formation from envelopper to envelop (see ENVELOP (Cf. envelop)) …   Etymology dictionary

  • envelope — s. m. Envoltório para cartas ou outros documentos ou papéis. = SOBRECARTA, SOBRESCRITO   ‣ Etimologia: francês enveloppe …   Dicionário da Língua Portuguesa

  • envelope — [n] wrapper bag, box, case, casing, cloak, coat, coating, container, cover, covering, enclosure, hide, jacket, pocket, pouch, receptacle, sheath, shell, skin, vesicle, wrapping; concept 494 …   New thesaurus

  • Envelope — 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 …   Wikipedia

  • envelope — noun ADJECTIVE ▪ bulky, fat, thick ▪ large, small ▪ sealed ▪ return (AmE), self addressed …   Collocations dictionary

  • envelope — n. 1) to address; seal an envelope 2) a pay envelope (AE; BE has pay packet) 3) a self addressed; stamped; window envelope USAGE NOTE: AE has stamped self addressed envelope; BE has stamped addressed envelope. * * * [ envələʊp] seal an envelope… …   Combinatory dictionary

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