PROBE
Source: 566, 567
probe. Probe, n. a surgeon's instrument, a slender wire
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Probe (?), v. t. [imp. & p. p. Probed (?); p. pr. & vb. n. Probing.] [[L. probare to try, examine. See Prove.]] 1. 1. To examine, as a wound, an ulcer, or some cavity of the body, with a probe.
2. 2. Fig.: to search to the bottom; to scrutinize or examine thoroughly. Dryden.
The growing disposition to probe the legality of all acts, of the crown. Hallam.