a glycosyl radical formed from ribose.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
The radical formed by loss of the hemiacetal OH group from either of the two cyclic forms of ribose (yielding ribofuranosyl and ribopyranosyl compounds), by combination with an H of an -NH- or a -CH- group; the natural nucleosides are ribosyl compounds, not ribosides, as the bond between ribose and aglycon is C-N or C-C, not -C-O-X-.
Farlex Partner Medical Dictionary © Farlex 2012
The radical formed by loss of the hemiacetal OH group from either of the two cyclic forms of ribose.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012