Also found in: Dictionary.
word element [Gr.], ray; radiation.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
actino-, actin- [Gr. aktis, stem aktin-, ray]
1. Prefixes meaning ray or radiation.
2. Prefixes meaning having a radiating structure, e.g., Actinomyces.
Medical Dictionary, © 2009 Farlex and Partners