n. Biology, pl., -la (-lə).
A band or bandlike structure that holds an organ or a part in place.
[Latin retināculum, band, tether : retinēre, to restrain; see retain + -culum, suff. denoting instruments.]
retinacular ret'i·nac'u·lar (-lər) adj.
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.