Scrabble Dictionary
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| Scrabble US | (13 Points) | |
| Scrabble UK | (13 Points) | |
| Words With Friends | (17 Points) |
Envelope
ˈɛnvələʊp
Envelope definitions
noun
envelope
envelopes
- a flat paper container with a sealable flap, used to enclose a letter or document
- a covering or containing structure or layer
"the external envelope of the swimming pool"
- the outer metal or glass housing of a vacuum tube, electric light, etc.
"the switch itself is a glass envelope filled with rare gases and containing two contacts"
- the structure within a balloon or non-rigid airship containing the gas
- a membrane which forms the outer layer of certain viruses
- a curve joining the successive peaks of a modulated wave
- a curve or surface tangent to each of a family of curves or surfaces