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Webster 1913 Edition
Triduan
Trid′u-an
,Adj.
[L.
triduanus
, fr. triduum
space of three days; tri-
+ dies
day.] Lasting three lays; also, happening every third day.
[R.]
Blount.
Webster 1828 Edition
Triduan
TRID'UAN
,Adj.