Envelop vs. Envelope

Envelopverb

(transitive) To surround or enclose.

Envelopverb

To put a covering about; to wrap up or in; to inclose within a case, wrapper, integument or the like; to surround entirely; as, to envelop goods or a letter; the fog envelops a ship.

Envelopverb

enclose or enfold completely with or as if with a covering;

Envelopverb

wrap up, cover, or surround completely

Envelopverb

(of troops) surround (an enemy force)

Envelopenoun

A paper or cardboard wrapper used to enclose small, flat items, especially letters, for mailing.

Envelopenoun

Something that envelops; a wrapping.

Envelopenoun

A bag containing the lifting gas of a balloon or airship; fabric that encloses the gas-bags of an airship.

Envelopenoun

(geometry) A mathematical curve, surface, or higher-dimensional object that is the tangent to a given family of lines, curves, surfaces, or higher-dimensional objects.

Envelopenoun

(electronics) A curve that bounds another curve or set of curves, as the modulation envelope of an amplitude-modulated carrier wave in electronics.

Envelopenoun

(music) The shape of a sound, which may be controlled by a synthesizer or sampler.

Envelopenoun

(computing) The information used for routing a message that is transmitted with the message but not part of its contents.

Envelopenoun

(biology) An enclosing structure or cover, such as a membrane; a space between two membranes

Envelopenoun

(engineering) The set of limitations within which a technological system can perform safely and effectively.

Envelopenoun

(astronomy) The nebulous covering of the head or nucleus of a comet; a coma.

Envelopenoun

An earthwork in the form of a single parapet or a small rampart, sometimes raised in the ditch and sometimes beyond it.

Envelopeverb

(nonstandard) lang=en

Envelopenoun

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.

Envelopenoun

The nebulous covering of the head or nucleus of a comet; - called also coma.

Envelopenoun

A work of earth, in the form of a single parapet or of a small rampart. It is sometimes raised in the ditch and sometimes beyond it.

Envelopenoun

A curve or surface which is tangent to each member of a system of curves or surfaces, the form and position of the members of the system being allowed to vary according to some continuous law. Thus, any curve is the envelope of its tangents.

Envelopenoun

A set of limits for the performance capabilities of some type of machine, originally used to refer to aircraft; - it is often described graphically as a two-dimensional graph of a function showing the maximum of one performance variable as a function of another. Now it is also used metaphorically to refer to capabilities of any system in general, including human organizations, esp. in the phrase push the envelope. It is used to refer to the maximum performance available at the current state of the technology, and therefore refers to a class of machines in general, not a specific machine.

Envelopenoun

a flat rectangular paper container for papers

Envelopenoun

any wrapper or covering

Envelopenoun

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

Envelopenoun

a natural covering (as by a fluid);

Envelopenoun

the maximum operating capability of a system;

Envelopenoun

the bag containing the gas in a balloon

Envelopenoun

a flat paper container with a sealable flap, used to enclose a letter or document.

Envelopenoun

a covering or containing structure or layer

Envelopenoun

the outer metal or glass housing of a vacuum tube, electric light, etc.

Envelopenoun

the structure within a balloon or non-rigid airship containing the gas.

Envelopenoun

a membrane which forms the outer layer of certain viruses.

Envelopenoun

a curve joining the successive peaks of a modulated wave.

Envelopenoun

a curve or surface tangent to each of a family of curves or surfaces.

Envelope

An envelope is a common packaging item, usually made of thin, flat material. It is designed to contain a flat object, such as a letter or card.