n. & v.
n. 1 the act or process of closing. 2 a closed condition. 3 something that closes or seals, e.g. a cap or tie. 4 a procedure for ending a debate and taking a vote, esp. in Parliament.
v.tr. apply the closure to (a motion, speakers, etc.).
[ ME f. OF f. LL clausura f. claudere claus- CLOSE(2) ]