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1. the algal component of the thallus of a lichen.
2. a motile reproductive unit of certain nitrogen-fixing bacteria. adj., adj gonid´ial.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
n. pl. gonid·ia (-ē-ə)
An asexually produced cell that can generate a new colony, found in certain algae such as volvox.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.