l-


Also found in: Dictionary, Thesaurus, Financial, Acronyms, Encyclopedia.

l-

 
abbreviation for levo- (left or counterclockwise); a chemical prefix indicating an enantiomer that rotates the plane of polarization of a beam of light in the counterclockwise direction, the other enantiomer being specified as d-. For further explanation, see d-.

l-

 
a chemical prefix that specifies the relative chemical configuration of an enantiomer, carbohydrates corresponding to l-glyceraldehyde and amino acids corresponding to l-serine; see d- for further explanation.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

l-

Levorotatory. Compare: d-.
[L. laevus, on the left-hand side]

l-

Prefix indicating a chemical compound to be structurally (sterically) related to l-glyceraldehyde. Compare: d-.
Farlex Partner Medical Dictionary © Farlex 2012

L-

In biochemistry, a symbol used as a prefix to indicate the spatial configuration of certain organic compounds with asymmetric carbon atoms. It is used if an organic compound has a configuration about an asymmetric carbon atom analogous to that of L-glyceraldehyde (the arbitrarily chosen standard), in which the hydroxy (OH) functional group is on the left side of the asymmetric carbon atom in a Fischer projection formula: an L-amino acid.

l-

The symbol for levorotatory
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

l-

1. Abbreviation for levorotatory.
Compare: d
2. Prefix indicating a chemical compound to be structurally (sterically) related to l-glyceraldehyde.
[L. laevus, on the left-hand side]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012