downtrace

noun3

1. •
   The set of subordinate units lower in the chain of command from a specified unit.
2. •
   The subtree of a tree structure that is determined by an attribute of a parent node.

   • B2 processing occurs when the subtree is in the downtrace of an attribute in X. — 1971
3. •
   The process of taking scientific samples as a probe is moving downward.

   • Theorizing that "noise" superimposed upon the downtrace might be the result of turbulent eddies or cavitation in the wake of the probe, we inverted the probe in its mount. — 1971