envelope curve
1Envelope — 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… …
2envelope — [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… …
3Envelope (mathematics) — In mathematics, an envelope of a family of manifolds (especially a family of curves) is a manifold that is tangent to each member of the family at some point.Envelope of a family of curvesThe simplest formal expression for an envelope of curves… …
4Envelope (disambiguation) — An envelope is the paper container used to hold a letter being sent by post.Envelope may also refer to:In science: * Envelope (mathematics), a curve, surface, or higher dimensional object defined as being tangent to a given family of lines or… …
5envelope — /en veuh lohp , ahn /, n. 1. a flat paper container, as for a letter or thin package, usually having a gummed flap or other means of closure. 2. something that envelops; a wrapper, integument, or surrounding cover. 3. Biol. a surrounding or… …
6envelope — noun Date: circa 1714 1. a flat usually paper container (as for a letter) 2. something that envelops ; wrapper < the envelope of air around the earth > 3. a. the outer covering of an aerostat b. the bag containing the gas in a balloon or airship… …
7envelope — [ ɛnvələʊp, ɒn ] 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》 Electronics a curve joining the successive peaks of a modulated wave. 4》 Mathematics a… …
8envelope — /ˈɛnvəloʊp / (say envuhlohp), /ˈɒn / (say on ) noun 1. a cover for a letter or the like, usually so made that it can be sealed or fastened. 2. that which envelops; a wrapper, integument, or surrounding cover. 3. Botany a surrounding or enclosing… …
9envelope — n. 1 a folded paper container, usu. with a sealable flap, for a letter etc. 2 a wrapper or covering. 3 the structure within a balloon or airship containing the gas. 4 the outer metal or glass housing of a vacuum tube, electric light, etc. 5… …
10envelope — en•ve•lope [[t]ˈɛn vəˌloʊp, ˈɑn [/t]] n. 1) a flat paper container, as for a letter or thin package, usu. having a gummed flap or other means of closure 2) something that envelops; a wrapper or surrounding cover 3) bio a surrounding or enclosing… …
