Definition of Envelope. Meaning of Envelope. Synonyms of Envelope

Here you will find one or more explanations in English for the word Envelope. Also in the bottom left of the page several parts of wikipedia pages related to the word Envelope and, of course, Envelope synonyms and on the right images related to the word Envelope.

Definition of Envelope

Envelope
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. 2. (Astron.) The nebulous covering of the head or nucleus of a comet; -- called also coma. 3. (Fort.) 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. --Wilhelm. 4. (Geom.) 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.

Meaning of Envelope from wikipedia

- 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. Traditional...
- A red envelope, red packet, hongbao or ang pau (traditional Chinese: 紅包; simplified Chinese: 红包; pinyin: hóngbāo; Pe̍h-ōe-jī: âng-pau) is a gift of money...
- In sound and music, an envelope describes how a sound changes over time. For example, a piano key, when struck and held, creates a near-immediate initial...
- In geometry, an envelope of a planar family of curves is a curve that is tangent to each member of the family at some point, and these points of tangency...
- The nuclear envelope, also known as the nuclear membrane, is made up of two lipid bilayer membranes that in eukaryotic cells surround the nucleus, which...
- In physics and engineering, the envelope of an oscillating signal is a smooth curve outlining its extremes. The envelope thus generalizes the concept of...
- An envelope detector (sometimes called a peak detector) is an electronic circuit that takes a (relatively) high-frequency amplitude modulated signal as...
- The envelope system, also known as the envelope budgeting method or cash stuffing, is a po****r method for visualizing and maintaining a flexible budget...
- The Gaza Envelope (Hebrew: עוטף עזה, Otef Aza) encomp****es the po****ted areas in the Southern District of Israel that are within 7 kilometres (4.3 mi)...
- Look up envelope in Wiktionary, the free dictionary. An envelope is the paper container used to hold a letter being sent by post. Envelope may also refer...