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focal point
focal ratio
focal seizure
focalisation
focalise
Focalization
Focalize
focally
Focillate
Focillation
Focimeter
FOCL
FOCS
Focus
focus group
focus on
-- Focus tube --
focused
focusing
focussed
focussing
FOD
FODA
Fodder
Fodderer
Fodient
Fodientia
FODO
Foe
FoeBud
Foehn
Foehood
Foeman
Focus tube
(Phys.)
a
vacuum
tube
for
Rœntgen
rays
in
which
the
cathode
rays
are
focused
upon
the
anticathode
,
for
intensifying
the
effect
.
See also:
Focus
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