Pronunciation: (fō'lē-um), [key]
—pl. -li•aPronunciation: (-lē-u). [key]
1. a thin leaflike stratum or layer; a lamella.
2. Geom.a loop; part of a curve terminated at both ends by the same node. Equation: x 3 + y3 = 3axy.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.