DIP

to lower and then raise again the ensign (flag carried by a ship as a insignia of her nationality) as a mark of courtesy to a passing vessel. —SHSBC Binder 3 Approved Glossary

to lower and then raise again the ensign (flag carried by a ship as a insignia of her nationality) as a mark of courtesy to a passing vessel.

a falling needle. (EME, p. 14) See FALL.