adj.
Having or consisting of many cells: multicellular organisms.
multicellularity mul'ti·cel'lu·lar'i·ty (-lăr'ĭ-tē) n.
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.