Definition of origamis:
(n) :
(uncountable) The Japanese art of paper folding.
(n) :
(countable) A piece of art made by folding paper.
(v) :
(transitive) To construct by means of decorative paper folding.
(n) :
(uncountable) The mathematics field that studies folding two-dimensional surfaces into three-dimensional structures, using folds and creases akin to those in the art of origami.
(n) :
(uncountable) The materials science technology that applies the art of origami to products.
(n) :
(uncountable) The materials science that studies origami applications in various material.