envelope

Definition of Envelope in English :

see synonyms of envelope

Noun

1. envelope

a flat (usually rectangular) container for a letter, thin package, etc.

2. envelope

any wrapper or covering

3. envelope

a curve that is tangent to each of a family of curves

4. envelope

a natural covering (as by a fluid)

Example Sentences:
'the spacecraft detected an envelope of gas around the comet'

5. envelope

the maximum operating capability of a system (especially an aircraft)

Example Sentences:
'test pilots try to push the envelope'

6. envelope, gasbag

the bag containing the gas in a balloon

gasbag

WordNet Lexical Database for English. Princeton University. 2010.

Envelope

see synonyms of envelope

noun

1.

a flat covering of paper, usually rectangular in shape and with a flap that can be folded over and sealed, used to enclose a letter, etc

2.

any covering or wrapper

3. biology

any enclosing structure, such as a membrane, shell, or skin

4.

the bag enclosing the gas in a balloon

5. mathematics

a curve or surface that is tangent to each one of a group of curves or surfaces

6. electronics

the sealed glass or metal housing of a valve, electric light, etc

7. telecommunications

the outer shape of a modulated wave, formed by the peaks of successive cycles of the carrier wave

8. push the envelope

Envelope

see synonyms of envelope

noun

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. Astronomy

a cloudy mass surrounding the nucleus of a comet; coma

7. Biology

any enclosing membrane, skin, shell, etc.

8. Ancient Mathematics

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

Envelope

see synonyms of envelope

n.

1. A flat paper container, especially for a letter, usually having a gummed flap.

2. Something that envelops; a wrapping.

3. Biology An enclosing structure or cover, such as a membrane or the outer coat of a virus.

4. The bag containing the gas in a balloon or airship.

5. The set of limitations within which a technological system, especially an aircraft, can perform safely and effectively.

6. Astronomy

a. A usually spherical region of interstellar matter surrounding a forming star and interacting with the star's gravitational and radiation fields.

b. The coma of a comet.

7. Mathematics A curve or surface that is tangent to every one of a family of curves or surfaces.

Envelope

Noun

Envelope

Envelope

Envelope

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