Definition of port arms
: a position in the manual of arms in which the rifle is held diagonally in front of the body with the muzzle pointing upward to the left; also : a command to assume this position
Origin and Etymology of port arms
from the command port arms!
First Known Use: circa 1890
Seen and Heard
What made you want to look up port arms? Please tell us where you read or heard it (including the quote, if possible).