Meaning of polymorphonuclear

pol•y•mor•pho•nu•cle•ar

Pronunciation: (pol"ē-môr"fu-n'klē-ur, -ny'- or, by metathesis, -kyu-lur), [key]
— adj. Cell Biol.
  1. (of a leukocyte) having a lobulate nucleus.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.