To represent by drawing; to draw a plan of; to delineate; to trace or mark out.
To give rise to a geometrical structure.
To represent in words.
To introduce a new taxon to science by explaining its characteristics and particularly how it differs from other taxa.
To open (anything covered or closed); to lay open to view or contemplation; to bring out in all the details, or by successive development.
To undo a folding.
To release from a fold or pen.
To turn out; to happen; to develop.
To reveal.
In functional programming, a kind of higher-order function that is the opposite of a fold.