limen noun. ['lʌɪmɛn, 'li:-] M17.
[Latin = threshold; in sense 2 translating German Schwelle.]
1. A threshold. Only in M17.

2. Psychology. The minimum strength of a stimulus required to produce a sensation; the minimum amount by which one stimulus has to differ from another for the difference to be perceptible. L19.

[TahlilGaran] English Dictionary ▲