B mode
Also found in: Medical.
B mode
[′bē ‚mōd] (acoustics)
A form of ultrasonic medical tomography in which a two-dimensional picture is formed by scanning the line-of-sight propagation path and monitoring the position and direction of the path.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.