turn

turn

1. Music a melodic ornament that makes a turn around a note, beginning with the note above, in a variety of sequences

2. Theatre chiefly Brit a short theatrical act, esp in music hall, cabaret, etc.

turn

[′tərn]

(electricity)

One complete loop of wire.

(mathematics)

circle

TURN

(messaging, protocol)

An SMTP command with which a client asks the server to open an SMTP connection to the client, thus reversing their roles.

Superseded by ETRN.