bilin(redirected from biline)
Also found in: Medical.
1. Any of various organic pigments that contain four linearly arranged pyrrole rings.
2. Any of these pigments that are found in red algae and cyanobacteria; a phycobilin.
[Back-formation from phycobilin.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.