Wiktionary
enveloper
n. Something which envelops
Usage examples of "enveloper".
Djjckett dodged under his shepherding arm and went back to his enveloper to look at his portcase.
He was already out of his enveloper, apologizing, moving towards the door, saying good-bye to Djjckett.
Two flocks of massive transport envelopers had gone wild on separate occasions, sending local communities into a panic until the beasts were contained.
By the 21st, the point had been isolated, and the envelopers were themselves enveloped.