cyclorama vs ikon

cyclorama and ikon both are nouns.

Word	Noun	Adjective	Verb	Adverb
cyclorama	Yes	No	No	No
ikon	Yes	No	No	No

As nouns, ikon is a hypernym of cyclorama; that is, ikon is a word with a broader meaning than cyclorama:

cyclorama: a picture (or series of pictures) representing a continuous scene
ikon: a visual representation (of an object or scene or person or abstraction) produced on a surface

Other hypernyms of cyclorama include icon, image, picture.

cyclorama (noun)	ikon (noun)
a picture (or series of pictures) representing a continuous scene	a visual representation (of an object or scene or person or abstraction) produced on a surface
	a conventional religious painting in oil on a small wooden panel; venerated in the Eastern Church