probe

PROBE, n. [L. probo.] A surgeon's instrument for examining the depth or other circumstances of a wound, ulcer or cavity, or the direction of a sinus, or for searching for stones in the bladder and the like.

PROBE, v.t. To examine a wound,ulcer or some cavity of the body, by the use of an instrument thrust into the part.

1. To search to the bottom; to scrutinize; to examine thoroughly into causes and circumstances.