Article
The muscle surrounding the pupil of the eye, which gives the eye its color.
Photo Credit
"Iris" by ThomasB is licensed under GPL, via Wikimedia Commons.
Published Works
Term Type
Manuscripts
Manuscript Occurrences
References
References
Merriam-Webster.com
N.d. Iris
http://www.merriam-webster.com/dictionary/iris, accessed 3/25/2016