II. PRECURSORY CONDITIONS AND OPERATIONS
verification, probation, experimentum crucis, proof, criterion, diagnostic, test, crucial test.
crucible, reagent, check, touchstone, pix; assay, ordeal; ring; curcuma paper, turmeric paper.
empiricism, rule of thumb.
feeler; pilot balloon, messenger balloon; pilot engine; scout; straw to show the wind.
speculation, random shot, leap in the dark.
analyzer, analyst; adventurer; experimenter, experimentist, experimentalist.
[Verbs] experiment; essay (endeavor) [more]; try, assay; make an experiment, make a trial of; give a trial to; put on trial, subject to trial; experiment upon; rehearse; put to the test, bring to the test, submit to the test, submit to the proof; prove, verify, test, touch, practice upon, try one's strength.
grope; feel one's way, grope for one's way; fumble, tatonner, aller a tatons, put out a feeler, throw out a feeler; send up a pilot balloon; see how the land lies, see how the wind blows; consult the barometer; feel the pulse; fish for, bob for; cast for, beat about for; angle, trawl, cast one's net, beat the bushes.
probative, probatory, probationary, provisional; analytic, docimastic; tentative.