sidearm

Glycerol in various percentages in 2.9 percent sodium citrate dihydrate solution was placed in the sidearm of the Warburg flasks.

The resulting glycerol percentages after mixing the sidearm and main compartment contents were 0, 4, 8, and 12 percent.

I'll hand over my sidearm to you just before your men come through the air lock.

As Barrent came through the doorway, two of the men moved back; the third, his sidearm negligently lowered, stepped forward.

He oughtn't even to be trusted with a sidearm, let alone five companies of armed soldiers.