icono-, icon- +
(Greek: image, likeness; a sacred or holy image)
"An aniconic reference to the worship of an object that is symbolized, but not representing a god or a deity."
"Some religions have an aniconic opposition to the use or presentation of icons or idols."
"Among Muslims, there is a prohibition against life-like imagery of either living creatures or of figures that are central to Islam, and most specifically of Muhammad, the prophet of Islam, and of God."
2. The worship of objects that are symbolic but which do not actually show an image of a god or gods: "In the early history of Christianity (726 A.D., Byzantine Emperor Leo 3), there were aniconisms that prohibited the veneration or worship among Christians of representations of deities."2. Eastern Church, a representation of some sacred personage, as Christ or a saint or angel, painted usually on a wood surface and venerated itself as sacred.
3. A sign or representation that stands for its object by virtue of a resemblance or analogy to it.
4. An important and enduring symbol.
5. In semiotics, that stands for its object by virtue of a resemblance or analogy to it.
6. With computers, a sign, representation, or a picture on a computer screen that represents a specific file, directory, window, option, or program.
When an icon is clicked on, some action is performed; such as, opening a directory or aborting a file transfer.
The term originates from Alan Kay's theory for designing interfaces which was primarily based on the work of Jerome Bruner. Bruner's second developmental stage, iconic, uses a system of representation that depends on visual or other sensory organization and upon the use of summarising images.
2. Relating to or characteristic of a religious icon; iconic images.
3. Made in a conventional style or pose, especially that of an ancient Greek statues of athletes.
2. In art, referring to statues, portraits, etc. which are executed according to a convention or tradition.
2. In computing, to make into an icon; to reduce to the size of an icon.
2. The beliefs, practices, or doctrine of an iconoclast.
3. A challenge to or overturning of traditional beliefs, customs, and values.
4. The destruction of religious images used in worship, or strong opposition to their use in worship.
2. One who destroys sacred religious images.
3. A breaker or destroyer of images; especially, those set up for religious veneration.
4. A person who attacks cherished beliefs, traditional institutions, etc., as being based on error or superstition.

The original iconoclasts destroyed countless works of art; such as, religious images which were the subject of controversy among Christians of the Byzantine Empire, especially in the eighth and ninth centuries, when iconoclasm was at its height.
Those who opposed images did not simply destroy them, although many were demolished; they also attempted to have the images barred from display and veneration.
During the Protestant Reformation, images in churches were again felt to be idolatrous and were banned and destroyed. In the nineteenth century, the term "iconoclast" took on the secular sense that it has today; someone who breaks traditions, doctrines, convictions, practices, etc.
