threshold
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(thresh′(h)ōld″)

1. The point at which a psychological or physiological effect begins to be produced.
2. A measure of the sensitivity of an organ or function that is obtained by finding the lowest value of the appropriate stimulus that will give the response.
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(thresh′(h)ōld″)

1. The point at which a psychological or physiological effect begins to be produced.
2. A measure of the sensitivity of an organ or function that is obtained by finding the lowest value of the appropriate stimulus that will give the response.
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