noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A subunit of a formation; a subsidiary formation.

   "moving five subformations into place before the attack"

2. 2
   A formation (of rock) within a larger formation.
3. 3
   A formation that is a subset of a larger formation.

Example

More examples

"moving five subformations into place before the attack"

Etymology

From sub- + formation.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.