English edit

Etymology edit

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Noun edit

mountain fold (plural mountain folds)

  1. (origami) A fold where a portion of paper is pushed behind the rest of the paper, usually marked with a line pattern comprising one dash and two dots: -··-··-··-··-··-··-··-··-.

Antonyms edit