A pictorial or literary portrait of oneself, created by oneself. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "self-portrait" in a sentence
"Hearing them, Paige came down from her room upstairs and joined them in the hall by the large Francis Bacon self-portrait."
"But the embattled Jackie comes closest to a self-portrait, he adds."
"And the "bathroom self-portrait photo takers"... we all know it's been downhill for them in the time since posing as fraternal twins in the mirror."