n.
A pointed oval shape used in medieval Christian art as an aureole to surround a sacred figure.
[New Latin vēsīca piscis : Latin vēsīca, bladder + Latin piscis, genitive of piscis, fish (from the resemblance in shape).]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.