TRN meaning in Space Science ?

Answer: What is Trunnion mean?

A trunnion (from Old French "trognon", trunk) is a cylindrical protrusion used as a mounting or pivoting point. First associated with cannons, they are an important military development.

Alternatively, a trunnion is a shaft that positions and supports a tilting plate. This is a misnomer, as in reality it is a cradle for the true trunnion.

In mechanical engineering (see the trunnion bearing section below), it is one part of a rotating joint where a shaft (the trunnion) is inserted into (and turns inside) a full or partial cylinder.

reference

Full Form	Category
The Research Network	Academic & Science
Turin	Airport Code
Temporary Registration Number	Business
Trinity Industries, Inc.	Business
Taxpayer Registration Number	Business
Teacher Reference Number	Community
Times Record News	Community
Total Request Nsync	Community
Token Ring Network	Computing
Translation Support File	Computing
Transaction Reference Number	Computing
Quattro - Clarion Translation Support File	File Type
The Reserves Network	General
The Resource Network	General
Topic Reply Notification	General
Training Resource Network	General
Toms Robbing Numbers	General
Topology Representing Networks	General
Temporary Reality Number	General
Title Resource Network	General
Tech Resource Network	General
Trofeo Rally Nazionale	General
Tatra Register Nederland	General
Ford Transit	General
Touran	General
The Robotech Network	General
Talk Radio Network	General
TARAON	Indian Railway Station
Target Ring Number	Measurement Unit
Threaded Read News	Messaging
Task Requirement Notice	Military and Defence
Training	Military and Defence
Turin, Italy	Regional
Trunnion	Space Science
The Racing Network	Sports
Technology Research News	Technology