envelope : Idioms & Phrases
Floral envelope
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noun collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils
perigonium; chlamys; perianth; perigone.
WordNet
(Bot.) , the calyx and corolla, one or the other of which (mostly the corolla) may be wanting.
Webster 1913
Letter-sheet envelope
- a stamped sheet of letter paper issued by the government, prepared to be folded and sealed for transmission by mail without an envelope.
Webster 1913
pay envelope
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noun wages enclosed in an envelope for distribution to the wage earner
pay packet.
WordNet
push the envelope
- Increase the capability of some type of machine or system; usu. by technological development.
Webster 1913
window envelope
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noun an envelope with a transparent panel that reveals the address on the enclosure