any of various games played on a sloping,
glass-topped table presenting a
field of colorful, knoblike
target pins and rails, the
object usually being to
shoot a
ball, driven by a
spring, up a side passage and
cause it to
roll back down against these projections and through channels, which electrically
flash or
ring and record the
score.
—HSSC Glossary (approved 3-9-90)