A genius; a very smart person.
One mole of photons, regardless of frequency, as used to measure irradiance.
A shape that can be repeated to cover a plane with a nonrepeating pattern.
Creativity; resourcefulness.
Particularly, construction of false images; fantasizing.
The image-making power of the mind; the act of mentally creating or reproducing an object not previously perceived; the ability to create such images.
A mental image formed by the action of the imagination as a faculty; something imagined.