trapezoidal excavator

trapezoidal excavator

[¦trap·ə¦zȯid·əl ′eks·kə‚vād·ər]

(mechanical engineering)

A digging machine which removes earth in a trapezoidal cross-section pattern for canals and ditches.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.