Noun

(en noun)

The image-making power of the mind; the act of creating or reproducing ideally an object not previously perceived; the ability to create such images.

Imagination is one of the most advanced human faculties.

* {{quote-book, year=1913, author=

, title=Lord Stranleigh Abroad , chapter=5 citation , passage=She removed Stranleigh’s coat with a dexterity that aroused his imagination .}}

Particularly, construction of false images; fantasizing.

You think someone's been following you? That's just your imagination .

Creativity; resourcefulness.

His imagination makes him a valuable team member.

A mental image formed by the action of the imagination as a faculty; a conception; a notion; an imagining; something imagined.

* 1597 , Francis Bacon, "Of Youth and Age", Essays :

And yet the invention of young men, is more lively than that of old; and imaginations stream into their minds better, and, as it were, more divinely.

Noun

(en noun)

entanglement; a spiralling inwards; intricacy

:* 1968': ‘Gomez,’ said the mortician, ‘is an expert only on the '''involutions of his own rectum.’ — Anthony Burgess, ''Enderby Outside

(mathematics) An endofunction whose square is equal to the identity function; a function equal to its inverse.

* 1996 , Alfred J. Menezes et al, Handbook of Applied Cryptography , CRC Press, page 10:

Involutions have the property that they are their own inverses.

(physiology) The regressive changes in the body occurring with old age.

(mathematics, obsolete) A power: the result of raising one number to the power of another.