envelope in Greek
envelope in Greek
φάκελος
A paper or cardboard wrapper used to enclose small, flat items, especially letters, for mailing.
περίβλημα
Something that envelops; a wrapping.
περιβάλλουσα
(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.
περίβλημα
(biology) An enclosing structure or cover, such as a membrane; a space between two membranes
περιχιτώνιο
(biology) An enclosing structure or cover, such as a membrane; a space between two membranes
κέλυφος
(engineering) The set of limitations within which a technological system can perform safely and effectively.