'Bisson' definitions:
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Bisson \Bis"son\, a. [OE. bisen, bisne, AS. bisen, prob. for
b[imac]s?ne; bi by + s?ne clear, akin to se['o]n to see;
clear when near, hence short-sighted. See See.]
Purblind; blinding. [Obs.] "Bisson rheum." --Shak.
[1913 Webster] Bister
