countersignature
1. [ noun ] a second confirming signature endorsing a document already signed
Synonyms: countersign
Related terms: signature countersign
Similar spelling:   countermeasure
  counterculture
  counteractive
  countersink_bit
  counteractively
  counterweight
  counterperson
  counteraction
  countersubversion
  counterespionage
  countervailing
  counterstrike
  counterfactual
  counterbattery_fire
  counterexample
  counterdemonstrator
  countercharge
  counterchange
  counterbalance