Definition of VAULT. 1. a: an arched structure of masonry usually forming a ceiling or roof b: something (as the sky) resembling a vault.2. a: a space covered by an arched structure; especially: an underground passage or room b: an underground storage compartment c: a room or compartment for the safekeeping of valuables.3.: an arched structure of masonry usually forming a ceiling or roof b: something (as the sky) resembling a vault. 2. a: a space covered by an arched structure; especially: an underground passage or room b: an underground storage compartment c: a room or compartment for the safekeeping of valuables. 3.
Pain management health centre. Trigger finger. Trigger finger is a painful condition causing the fingers to catch or lock up when they are bent. This can also affect thumbs, called trigger thumb. Trigger finger is usually due to inflammation of tendons connecting muscles and bones in the fingers or thumbs. Tendons usually slide easily through their covering of tissue with a lubricating membrane surrounding the synovium joint.
If you have a trigger finger, you may notice: 1  Your finger is stiff or it locks in a bent position. 2  You have painful snapping or popping when you bend and straighten your finger. 3  Your symptoms are worse in the morning.  You have a tender bump on the palm side of your hand at the base of your finger.