Meaning of aerenchyma

aer•en•chy•ma

Pronunciation: (â-reng'ku-mu, â-ren'-), [key]
— n. Bot.
  1. a tissue in certain aquatic plants, consisting of thin-walled cells and large intercellular spaces adapted for internal circulation of air.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.