boomerang sediment corer

boomerang sediment corer

[′bü·mə‚raŋ ′sed·ə·mənt ‚kȯr·ər]
(engineering)
A device, designed for nighttime recovery of a sediment core, which automatically returns to the surface after taking the sample.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.