trackball
English Dictionary
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-> trackball
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trackball Definition
(n)
an
electronic
device
consisting
of
a
rotatable
ball
in
a
housing
;
used
to
position
the
cursor
and
move
images
on
a
computer
screen
; "
a
trackball
is
essentially
an
upside
-
down
mouse
"
trackball Synonyms
trackball
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