[en-vuh-lohp, ahn-] /ˈɛn vəˌloʊp, ˈɑn-/
a flat paper container, as for a letter or thin package, usually having a gummed flap or other means of closure.
something that envelops; a wrapper, integument, or surrounding cover.
Biology. a surrounding or enclosing structure, as a corolla or an outer membrane.
Geometry. a curve or surface tangent to each member of a set of curves or surfaces.
Radio. (of a modulated carrier wave) a curve connecting the peaks of a graph of the instantaneous value of the electric or magnetic component of the carrier wave as a function of time.
the fabric structure enclosing the gasbag of an aerostat.
the gasbag itself.
Electronics. the airtight glass or metal housing of a vacuum tube.
the technical limits within which an aircraft or electronic system may be safely operated.
push the envelope, to stretch established limits, as in technological advance or social innovation.
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
any covering or wrapper
(biology) any enclosing structure, such as a membrane, shell, or skin
the bag enclosing the gas in a balloon
(maths) a curve or surface that is tangent to each one of a group of curves or surfaces
(electronics) the sealed glass or metal housing of a valve, electric light, etc
(telecomm) the outer shape of a modulated wave, formed by the peaks of successive cycles of the carrier wave
(informal) push the envelope, to push the boundaries of what is possible
1705, from French enveloppe (13c.), a back-formation from envelopper “to envelop” (see envelop).
envelope en·ve·lope (ěn’və-lōp’, ŏn’-)
An enclosing structure or cover, such as a membrane or the outer coat of a virus.
noun 1. .
[en-vel-uh p-muh nt] /ɛnˈvɛl əp mənt/ noun 1. an act of . 2. the state of being . 3. a wrapping or covering. 4. Military. an attack on an enemy’s flank. n. 1763, from envelop (v.) + -ment.
[en-ven-uh m] /ɛnˈvɛn əm/ verb (used with object) 1. to impregnate with venom; make poisonous. 2. to embitter. /ɪnˈvɛnəm/ verb (transitive) 1. to fill or impregnate with venom; make poisonous 2. to fill with bitterness or malice v. c.1300, envenymen, from Old French envenimer (12c.) “to poison, taint;” from en- (see en- (1)) + venim […]
envenomation en·ven·om·a·tion (ěn-věn’ə-mā’shən) n. The injection of a poisonous material by sting, spine, bite, or other similar means.