recognition signal
Military
noun
A prearranged signal used by vessels, etc., for mutual identification.
Origin
Mid 19th century; earliest use found in Richard Townsend (1821–1884), mathematician.
- adherescent
- adhesin
- adhesion
- adhesion contract
- adhesion molecule
- adhesive
- adhesive capsulitis
- adhesive envelope
- adhesively
- adhesiveness
- adhesive organ
- adhesive plaster
- adhesive stamp
- adhesive tape
- adhibit
- adhibition
- ad hoc
- ad hocery
- ad hocism
- ad hockery
- ad hocness
- adhocracy
- adhocratic
- ad hocratic
- ad-hocratic