(engineering, mining) A method of sinking through water-bearing ground, in which the shaft is lined with tubbing and provided with an airlock, work being proceeded with under air pressure.

plural of trigger warning

(obsolete) Thirtieth. / (rare) Containing thirty of something.

Relating to the trigeminal nerve and the cervix

plural of trigatron

A kind of triggerable spark gap switch designed for high current and high voltage.

Having three (electronic) gates.

plural of triga

The quality of being trigger-happy.

plural of trigamma function