Limen:
li·men or psychological response. http://www.bartleby.com/61/31/L0173100.html
l
m
n
The threshold of a physiologicalETYMOLOGY: Latin l
men, threshold. OTHER FORMS: lim
i·nal (l
m
-n
l) —ADJECTIVE NOUN: Inflected forms: pl. li·mens or lim·i·na (
l
m
-n
)
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