envelope
UK /ˈɛnvə(ˌ)ləʊp/ · US /ˈɛnvə(ˌ)loʊp/ noun, verb
Also a form of envelop
Forms envelopes enveloping enveloped
- noun A paper or cardboard wrapper used to enclose small, flat items, especially letters, for mailing.
- noun Something that envelops; a wrapping.
- noun A bag containing the lifting gas of a balloon or airship; fabric that encloses the gas-bags of an airship.
- noun (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.
- noun (electronics) A curve that bounds another curve or set of curves, as the modulation envelope of an amplitude-modulated carrier wave in electronics.
- noun (music) The shape of a sound, which may be controlled by a synthesizer or sampler.
- noun (networking) The information used for routing a message that is transmitted with the message but not part of its contents.
- noun (biology) An enclosing structure or cover, such as a membrane; a space between two membranes
- verb (transitive, rare) To put (something) in an envelope.
Synonyms
Etymology
From French enveloppe. The engineering sense is derived from flight envelope. The verb is from the noun.
See envelop.
Webster’s 1913
- noun 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.
- noun The nebulous covering of the head or nucleus of a comet; --called also coma.
Etymology [F. enveloppe.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “envelope”, CC BY-SA 4.0. Details